249P/LINEAR
in
HI1A
 |
Comet 249P in HI1a
Images
Animation from 2011/04/04 01:29 UTC -
2010/04/11 11:29 UTC
each sequence 40 min apart;
original size and cropped;
processed by M.-T. Hui;
Courtesy of STEREO/SECCHI
Large size! ~52 MB |
 |
2011/04/11 03:29 UT
Coma size: 8'.6
Tail: 16' in P.A. 75°;
5x resized and cropped;
Pixel size: 72".03 x 72".03;
Courtesy of STEREO/SECCHI |
Observations of 249P/LINEAR: starting from Apr
08 to Apr 11, when 249P moves out of the FOV, computed with Astrometrica
- COD C49
MEA M.-T. Hui
NET CMC-14
0249P 4S2011 04 08.01321 08 18
09.74 +25 33 09.6
9.8 N C49
0249P 4s2011 04 08.01321 2
+1.23797065 -0.56000941 -0.24061507
C49
0249P 4S2011 04 08.04098 08 17
57.44 +25 34 45.0
9.8 N C49
0249P 4s2011 04 08.04098 2
+1.23830041 -0.55945562 -0.24037467
C49
0249P 4S2011 04 08.06876 08 17
44.99 +25 36 00.7
9.6 N C49
0249P 4s2011 04 08.06876 2
+1.23862988 -0.55890167 -0.24013420
C49
0249P 4S2011 04 08.09654 08 17
33.92 +25 37 21.4 10.4
N C49
0249P 4s2011 04 08.09654 2
+1.23895906 -0.55834756 -0.23989366
C49
0249P 4S2011 04 08.12432 08 17
21.37 +25 38 36.1
9.6 N C49
0249P 4s2011 04 08.12432 2
+1.23928795 -0.55779331 -0.23965306
C49
0249P 4S2011 04 08.15209 08 17
08.93 +25 40 07.1
9.8 N C49
0249P 4s2011 04 08.15209 2
+1.23961654 -0.55723889 -0.23941239
C49
0249P 4S2011 04 08.17987 08 16
59.07 +25 41 26.3
9.6 N C49
0249P 4s2011 04 08.17987 2
+1.23994484 -0.55668433 -0.23917166
C49
0249P 4S2011 04 08.20765 08 16
49.28 +25 42 54.8
9.6 N C49
0249P 4s2011 04 08.20765 2
+1.24027285 -0.55612961 -0.23893086
C49
0249P 4S2011 04 08.23543 08 16
34.54 +25 43 57.3
9.8 N C49
0249P 4s2011 04 08.23543 2
+1.24060057 -0.55557474 -0.23868999
C49
0249P 4S2011 04 08.26321 08 16
19.73 +25 45 24.1 10.4
N C49
0249P 4s2011 04 08.26321 2
+1.24092799 -0.55501972 -0.23844906
C49
0249P 4S2011 04 08.29098 08 16
09.68 +25 46 48.1
9.9 N C49
0249P 4s2011 04 08.29098 2
+1.24125513 -0.55446454 -0.23820806
C49
0249P 4S2011 04 08.31876 08 15
57.55 +25 47 58.3
9.9 N C49
0249P 4s2011 04 08.31876 2
+1.24158197 -0.55390921 -0.23796700
C49
0249P 4S2011 04 08.34654 08 15
45.55 +25 49 19.6
9.9 N C49
0249P 4s2011 04 08.34654 2
+1.24190851 -0.55335372 -0.23772587
C49
0249P 4S2011 04 08.37432 08 15
33.05 +25 50 38.7
9.5 N C49
0249P 4s2011 04 08.37432 2
+1.24223477 -0.55279809 -0.23748468
C49
0249P 4S2011 04 08.40209 08 15
21.64 +25 51 50.7
9.9 N C49
0249P 4s2011 04 08.40209 2
+1.24256073 -0.55224230 -0.23724342
C49
0249P 4S2011 04 08.42987 08 15
09.42 +25 53 14.0 10.2
N C49
0249P 4s2011 04 08.42987 2
+1.24288640 -0.55168636 -0.23700209
C49
0249P 4S2011 04 08.45765 08 14
56.11 +25 54 53.8
9.3 N C49
0249P 4s2011 04 08.45765 2
+1.24321178 -0.55113026 -0.23676070
C49
0249P 4S2011 04 08.48543 08 14
46.00 +25 55 50.4
9.7 N C49
0249P 4s2011 04 08.48543 2
+1.24353686 -0.55057402 -0.23651924
C49
0249P 4S2011 04 08.51321 08 14
32.46 +25 57 19.5
9.8 N C49
0249P 4s2011 04 08.51321 2
+1.24386165 -0.55001762 -0.23627772
C49
0249P 4S2011 04 08.54098 08 14
20.95 +25 58 35.1
9.2 N C49
0249P 4s2011 04 08.54098 2
+1.24418615 -0.54946107 -0.23603613
C49
0249P 4S2011 04 08.56876 08 14
07.63 +25 59 51.6 10.2
N C49
0249P 4s2011 04 08.56876 2
+1.24451036 -0.54890437 -0.23579448
C49
0249P 4S2011 04 08.59654 08 13
54.70 +26 01 10.6 10.2
N C49
0249P 4s2011 04 08.59654 2
+1.24483427 -0.54834751 -0.23555276
C49
0249P 4S2011 04 08.62432 08 13
43.86 +26 02 28.4
9.5 N C49
0249P 4s2011 04 08.62432 2
+1.24515789 -0.54779051 -0.23531098
C49
0249P 4S2011 04 08.65209 08 13
31.01 +26 03 45.5
9.8 N C49
0249P 4s2011 04 08.65209 2
+1.24548121 -0.54723335 -0.23506913
C49
0249P 4S2011 04 08.67987 08 13
20.94 +26 05 23.3
9.4 N C49
0249P 4s2011 04 08.67987 2
+1.24580424 -0.54667604 -0.23482722
C49
0249P 4S2011 04 08.73543 08 12
53.67 +26 07 40.5
9.9 N C49
0249P 4s2011 04 08.73543 2
+1.24644942 -0.54556097 -0.23434320
C49
0249P 4S2011 04 08.76321 08 12
43.01 +26 09 05.3
9.8 N C49
0249P 4s2011 04 08.76321 2
+1.24677157 -0.54500321 -0.23410109
C49
0249P 4S2011 04 08.79098 08 12
30.32 +26 10 17.4
9.3 N C49
0249P 4s2011 04 08.79098 2
+1.24709343 -0.54444530 -0.23385892
C49
0249P 4S2011 04 08.81876 08 12
16.82 +26 11 40.9
9.8 N C49
0249P 4s2011 04 08.81876 2
+1.24741499 -0.54388724 -0.23361668
C49
0249P 4S2011 04 08.84654 08 12
06.98 +26 13 05.7
9.8 N C49
0249P 4s2011 04 08.84654 2
+1.24773626 -0.54332903 -0.23337438
C49
0249P 4S2011 04 08.87432 08 11
52.54 +26 14 18.5
9.2 N C49
0249P 4s2011 04 08.87432 2
+1.24805724 -0.54277067 -0.23313202
C49
0249P 4S2011 04 08.90209 08 11
41.71 +26 15 32.1
9.9 N C49
0249P 4s2011 04 08.90209 2
+1.24837792 -0.54221215 -0.23288959
C49
0249P 4S2011 04 08.92987 08 11
28.32 +26 16 59.4
9.5 N C49
0249P 4s2011 04 08.92987 2
+1.24869831 -0.54165349 -0.23264709
C49
0249P 4S2011 04 08.95765 08 11
16.28 +26 18 09.6
9.3 N C49
0249P 4s2011 04 08.95765 2
+1.24901840 -0.54109468 -0.23240453
C49
0249P 4S2011 04 08.98543 08 11
03.46 +26 19 34.0
9.5 N C49
0249P 4s2011 04 08.98543 2
+1.24933820 -0.54053571 -0.23216191
C49
0249P 4S2011 04 09.01321 08 10
50.96 +26 20 51.0
9.7 N C49
0249P 4s2011 04 09.01321 2
+1.24965770 -0.53997660 -0.23191922
C49
0249P 4S2011 04 09.09654 08 10
14.32 +26 24 31.3
9.8 N C49
0249P 4s2011 04 09.09654 2
+1.25061444 -0.53829837 -0.23119077
C49
0249P 4S2011 04 09.12432 08 10
00.47 +26 25 59.7
9.1 N C49
0249P 4s2011 04 09.12432 2
+1.25093277 -0.53773866 -0.23094783
C49
0249P 4S2011 04 09.15209 08 09
49.78 +26 27 06.3
9.8 N C49
0249P 4s2011 04 09.15209 2
+1.25125080 -0.53717880 -0.23070482
C49
0249P 4S2011 04 09.17987 08 09
35.91 +26 28 30.2
9.1 N C49
0249P 4s2011 04 09.17987 2
+1.25156854 -0.53661879 -0.23046175
C49
0249P 4S2011 04 09.20765 08 09
23.53 +26 29 40.4
9.4 N C49
0249P 4s2011 04 09.20765 2
+1.25188598 -0.53605863 -0.23021861
C49
0249P 4S2011 04 09.23543 08 09
11.67 +26 31 14.8
9.3 N C49
0249P 4s2011 04 09.23543 2
+1.25220312 -0.53549833 -0.22997541
C49
0249P 4S2011 04 09.26321 08 08
59.31 +26 32 10.0
9.1 N C49
0249P 4s2011 04 09.26321 2
+1.25251998 -0.53493788 -0.22973214
C49
0249P 4S2011 04 09.29098 08 08
45.69 +26 33 27.2
9.4 N C49
0249P 4s2011 04 09.29098 2
+1.25283653 -0.53437727 -0.22948882
C49
0249P 4S2011 04 09.31876 08 08
33.16 +26 34 49.4
9.6 N C49
0249P 4s2011 04 09.31876 2
+1.25315279 -0.53381652 -0.22924542
C49
0249P 4S2011 04 09.34654 08 08
21.55 +26 36 09.7
9.0 N C49
0249P 4s2011 04 09.34654 2
+1.25346876 -0.53325562 -0.22900197
C49
0249P 4S2011 04 09.37432 08 08
07.85 +26 37 13.0
9.4 N C49
0249P 4s2011 04 09.37432 2
+1.25378443 -0.53269458 -0.22875845
C49
0249P 4S2011 04 09.40209 08 07
55.15 +26 38 38.2
9.3 N C49
0249P 4s2011 04 09.40209 2
+1.25409980 -0.53213338 -0.22851487
C49
0249P 4S2011 04 09.42987 08 07
42.37 +26 39 52.3
9.0 N C49
0249P 4s2011 04 09.42987 2
+1.25441488 -0.53157204 -0.22827122
C49
0249P 4S2011 04 09.45765 08 07
30.15 +26 41 06.0
9.2 N C49
0249P 4s2011 04 09.45765 2
+1.25472967 -0.53101055 -0.22802751
C49
0249P 4S2011 04 09.48543 08 07
16.50 +26 42 27.7
9.1 N C49
0249P 4s2011 04 09.48543 2
+1.25504415 -0.53044892 -0.22778374
C49
0249P 4S2011 04 09.51321 08 07
04.64 +26 43 36.5
8.9 N C49
0249P 4s2011 04 09.51321 2
+1.25535835 -0.52988713 -0.22753990
C49
0249P 4S2011 04 09.54098 08 06
51.82 +26 44 52.4
9.5 N C49
0249P 4s2011 04 09.54098 2
+1.25567224 -0.52932520 -0.22729601
C49
0249P 4S2011 04 09.59654 08 06
26.18 +26 47 27.5
9.0 N C49
0249P 4s2011 04 09.59654 2
+1.25629915 -0.52820090 -0.22680802
C49
0249P 4S2011 04 09.62432 08 06
13.92 +26 48 42.1
9.3 N C49
0249P 4s2011 04 09.62432 2
+1.25661216 -0.52763853 -0.22656393
C49
0249P 4S2011 04 09.65209 08 05
59.59 +26 50 04.8
9.1 N C49
0249P 4s2011 04 09.65209 2
+1.25692487 -0.52707601 -0.22631978
C49
0249P 4S2011 04 09.67987 08 05
49.10 +26 51 05.5
9.0 N C49
0249P 4s2011 04 09.67987 2
+1.25723728 -0.52651334 -0.22607556
C49
0249P 4S2011 04 09.70765 08 05
33.42 +26 52 38.4
9.4 N C49
0249P 4s2011 04 09.70765 2
+1.25754940 -0.52595053 -0.22583129
C49
0249P 4S2011 04 09.73543 08 05
24.39 +26 53 41.4
8.8 N C49
0249P 4s2011 04 09.73543 2
+1.25786123 -0.52538757 -0.22558695
C49
0249P 4S2011 04 09.76321 08 05
09.54 +26 54 56.1
9.1 N C49
0249P 4s2011 04 09.76321 2
+1.25817276 -0.52482447 -0.22534254
C49
0249P 4S2011 04 09.79098 08 04
55.56 +26 56 29.5
9.2 N C49
0249P 4s2011 04 09.79098 2
+1.25848399 -0.52426122 -0.22509808
C49
0249P 4S2011 04 09.81876 08 04
44.89 +26 57 11.2
8.5 N C49
0249P 4s2011 04 09.81876 2
+1.25879492 -0.52369782 -0.22485355
C49
0249P 4S2011 04 09.84654 08 04
30.85 +26 58 42.2
9.5 N C49
0249P 4s2011 04 09.84654 2
+1.25910556 -0.52313428 -0.22460896
C49
0249P 4S2011 04 09.87432 08 04
18.34 +26 59 57.6
9.2 N C49
0249P 4s2011 04 09.87432 2
+1.25941590 -0.52257059 -0.22436430
C49
0249P 4S2011 04 09.90209 08 04
05.79 +27 01 07.0
9.1 N C49
0249P 4s2011 04 09.90209 2
+1.25972594 -0.52200676 -0.22411959
C49
0249P 4S2011 04 09.92987 08 03
52.83 +27 02 22.0
9.4 N C49
0249P 4s2011 04 09.92987 2
+1.26003569 -0.52144278 -0.22387481
C49
0249P 4S2011 04 09.95765 08 03
39.83 +27 03 36.9
8.9 N C49
0249P 4s2011 04 09.95765 2
+1.26034514 -0.52087866 -0.22362997
C49
0249P 4S2011 04 09.98543 08 03
27.47 +27 04 45.2
9.0 N C49
0249P 4s2011 04 09.98543 2
+1.26065429 -0.52031439 -0.22338507
C49
0249P 4S2011 04 10.01321 08 03
13.28 +27 06 01.1
9.0 N C49
0249P 4s2011 04 10.01321 2
+1.26096315 -0.51974998 -0.22314010
C49
0249P 4S2011 04 10.04098 08 03
00.86 +27 07 13.6
8.9 N C49
0249P 4s2011 04 10.04098 2
+1.26127171 -0.51918542 -0.22289507
C49
0249P 4S2011 04 10.06876 08 02
48.85 +27 08 24.4
9.0 N C49
0249P 4s2011 04 10.06876 2
+1.26157997 -0.51862072 -0.22264998
C49
0249P 4S2011 04 10.09654 08 02
35.10 +27 09 41.8
8.9 N C49
0249P 4s2011 04 10.09654 2
+1.26188794 -0.51805587 -0.22240483
C49
0249P 4S2011 04 10.12432 08 02
22.56 +27 10 52.7
8.6 N C49
0249P 4s2011 04 10.12432 2
+1.26219560 -0.51749088 -0.22215962
C49
0249P 4S2011 04 10.15209 08 02
09.21 +27 12 07.2
8.8 N C49
0249P 4s2011 04 10.15209 2
+1.26250297 -0.51692575 -0.22191434
C49
0249P 4S2011 04 10.17987 08 01
56.72 +27 13 21.7
8.9 N C49
0249P 4s2011 04 10.17987 2
+1.26281005 -0.51636047 -0.22166900
C49
0249P 4S2011 04 10.20765 08 01
43.60 +27 14 32.6
8.6 N C49
0249P 4s2011 04 10.20765 2
+1.26311682 -0.51579504 -0.22142360
C49
0249P 4S2011 04 10.23543 08 01
30.14 +27 15 46.3
9.1 N C49
0249P 4s2011 04 10.23543 2
+1.26342330 -0.51522947 -0.22117814
C49
0249P 4S2011 04 10.26321 08 01
17.00 +27 17 05.9
8.5 N C49
0249P 4s2011 04 10.26321 2
+1.26372948 -0.51466376 -0.22093262
C49
0249P 4S2011 04 10.29098 08 01
05.67 +27 18 13.8
8.4 N C49
0249P 4s2011 04 10.29098 2
+1.26403536 -0.51409791 -0.22068703
C49
0249P 4S2011 04 10.31876 08 00
51.13 +27 19 23.4
8.7 N C49
0249P 4s2011 04 10.31876 2
+1.26434094 -0.51353191 -0.22044139
C49
0249P 4S2011 04 10.34654 08 00
38.83 +27 20 37.0
8.6 N C49
0249P 4s2011 04 10.34654 2
+1.26464623 -0.51296577 -0.22019568
C49
0249P 4S2011 04 10.37432 08 00
25.28 +27 21 48.7
8.6 N C49
0249P 4s2011 04 10.37432 2
+1.26495122 -0.51239948 -0.21994991
C49
0249P 4S2011 04 10.40209 08 00
12.63 +27 23 00.8
8.7 N C49
0249P 4s2011 04 10.40209 2
+1.26525590 -0.51183305 -0.21970408
C49
0249P 4S2011 04 10.42987 07 59
59.80 +27 24 15.1
8.3 N C49
0249P 4s2011 04 10.42987 2
+1.26556030 -0.51126648 -0.21945819
C49
0249P 4S2011 04 10.45765 07 59
46.80 +27 25 23.4
8.7 N C49
0249P 4s2011 04 10.45765 2
+1.26586439 -0.51069977 -0.21921223
C49
0249P 4S2011 04 10.48543 07 59
33.34 +27 26 37.8
8.8 N C49
0249P 4s2011 04 10.48543 2
+1.26616819 -0.51013291 -0.21896622
C49
0249P 4S2011 04 10.51321 07 59
17.17 +27 27 32.8
8.1 N C49
0249P 4s2011 04 10.51321 2
+1.26647168 -0.50956591 -0.21872014
C49
0249P 4S2011 04 10.54098 07 59
08.14 +27 28 36.6
8.4 N C49
0249P 4s2011 04 10.54098 2
+1.26677488 -0.50899877 -0.21847400
C49
0249P 4S2011 04 10.56876 07 58
53.84 +27 30 12.0
8.4 N C49
0249P 4s2011 04 10.56876 2
+1.26707778 -0.50843149 -0.21822780
C49
0249P 4S2011 04 10.59654 07 58
41.26 +27 31 19.5
8.7 N C49
0249P 4s2011 04 10.59654 2
+1.26738038 -0.50786406 -0.21798154
C49
0249P 4S2011 04 10.62432 07 58
27.95 +27 32 27.9
9.0 N C49
0249P 4s2011 04 10.62432 2
+1.26768269 -0.50729650 -0.21773522
C49
0249P 4S2011 04 10.65209 07 58
14.66 +27 33 37.1
8.2 N C49
0249P 4s2011 04 10.65209 2
+1.26798469 -0.50672879 -0.21748884
C49
0249P 4S2011 04 10.67987 07 58
02.01 +27 34 41.5
8.6 N C49
0249P 4s2011 04 10.67987 2
+1.26828639 -0.50616093 -0.21724240
C49
0249P 4S2011 04 10.70765 07 57
48.35 +27 35 53.8
8.5 N C49
0249P 4s2011 04 10.70765 2
+1.26858780 -0.50559294 -0.21699589
C49
0249P 4S2011 04 10.73543 07 57
35.45 +27 36 59.0
8.3 N C49
0249P 4s2011 04 10.73543 2
+1.26888891 -0.50502481 -0.21674933
C49
0249P 4S2011 04 10.76321 07 57
22.22 +27 38 15.4
8.6 N C49
0249P 4s2011 04 10.76321 2
+1.26918972 -0.50445653 -0.21650270
C49
0249P 4S2011 04 10.79098 07 57
08.88 +27 39 21.4
8.6 N C49
0249P 4s2011 04 10.79098 2
+1.26949023 -0.50388811 -0.21625602
C49
0249P 4S2011 04 10.81876 07 56
56.07 +27 40 27.6
8.5 N C49
0249P 4s2011 04 10.81876 2
+1.26979044 -0.50331955 -0.21600927
C49
0249P 4S2011 04 10.84654 07 56
42.93 +27 41 33.9
8.9 N C49
0249P 4s2011 04 10.84654 2
+1.27009035 -0.50275085 -0.21576246
C49
0249P 4S2011 04 10.87432 07 56
30.35 +27 42 37.8
8.3 N C49
0249P 4s2011 04 10.87432 2
+1.27038996 -0.50218201 -0.21551559
C49
0249P 4S2011 04 10.90209 07 56
13.24 +27 43 10.1
8.6 N C49
0249P 4s2011 04 10.90209 2
+1.27068927 -0.50161303 -0.21526867
C49
0249P 4S2011 04 10.92987 07 56
03.23 +27 45 13.0
8.3 N C49
0249P 4s2011 04 10.92987 2
+1.27098828 -0.50104391 -0.21502168
C49
0249P 4S2011 04 10.95765 07 55
50.36 +27 45 58.4
8.2 N C49
0249P 4s2011 04 10.95765 2
+1.27128700 -0.50047465 -0.21477463
C49
0249P 4S2011 04 10.98543 07 55
36.55 +27 47 22.1
8.3 N C49
0249P 4s2011 04 10.98543 2
+1.27158541 -0.49990525 -0.21452752
C49
0249P 4S2011 04 11.01321 07 55
23.83 +27 48 31.9
8.5 N C49
0249P 4s2011 04 11.01321 2
+1.27188352 -0.49933570 -0.21428035
C49
0249P 4S2011 04 11.04098 07 55
10.08 +27 49 43.7
8.4 N C49
0249P 4s2011 04 11.04098 2
+1.27218134 -0.49876602 -0.21403312
C49
0249P 4S2011 04 11.06876 07 54
57.80 +27 50 47.2
8.5 N C49
0249P 4s2011 04 11.06876 2
+1.27247885 -0.49819620 -0.21378583
C49
0249P 4S2011 04 11.09654 07 54
44.47 +27 51 59.0
8.5 N C49
0249P 4s2011 04 11.09654 2
+1.27277607 -0.49762624 -0.21353848
C49
0249P 4S2011 04 11.12432 07 54
30.73 +27 53 06.1
8.8 N C49
0249P 4s2011 04 11.12432 2
+1.27307298 -0.49705614 -0.21329107
C49
0249P 4S2011 04 11.15209 07 54
15.81 +27 53 48.2
7.8 N C49
0249P 4s2011 04 11.15209 2
+1.27336960 -0.49648589 -0.21304360
C49
0249P 4S2011 04 11.17987 07 54
05.42 +27 55 14.4
8.1 N C49
0249P 4s2011 04 11.17987 2
+1.27366591 -0.49591551 -0.21279607
C49
0249P 4S2011 04 11.20765 07 53
50.59 +27 56 31.5
8.6 N C49
0249P 4s2011 04 11.20765 2
+1.27396192 -0.49534499 -0.21254848
C49
0249P 4S2011 04 11.23543 07 53
37.94 +27 57 37.3
8.4 N C49
0249P 4s2011 04 11.23543 2
+1.27425764 -0.49477433 -0.21230083
C49
0249P 4S2011 04 11.29098 07 53
11.68 +27 59 55.1
8.0 N C49
0249P 4s2011 04 11.29098 2
+1.27484817 -0.49363260 -0.21180535
C49
0249P 4S2011 04 11.31876 07 52
58.15 +28 00 59.2
8.0 N C49
0249P 4s2011 04 11.31876 2
+1.27514298 -0.49306152 -0.21155753
C49
0249P 4S2011 04 11.34654 07 52
44.66 +28 02 02.0
8.4 N C49
0249P 4s2011 04 11.34654 2
+1.27543749 -0.49249031 -0.21130964
C49
0249P 4S2011 04 11.37432 07 52
30.58 +28 03 18.9
8.3 N C49
0249P 4s2011 04 11.37432 2
+1.27573171 -0.49191896 -0.21106169
C49
0249P 4S2011 04 11.40209 07 52
18.76 +28 04 14.3
8.2 N C49
0249P 4s2011 04 11.40209 2
+1.27602562 -0.49134746 -0.21081368
C49
0249P 4S2011 04 11.42987 07 52
05.12 +28 05 20.2
8.6 N C49
0249P 4s2011 04 11.42987 2
+1.27631923 -0.49077583 -0.21056562
C49
----- end -----
-
I employed Comets for Windows
to plot the following graph with all the measured data during the spell when the
comet moves passing across the FOV. We can see that the
magnitude is linearly increasing as it heads towards its perihelion along its
path.
Gauss curve produced by
Astrometrica. The total PSF is using an aperture circle of
2 x
2 pixel around the brightest
pixel, which is, I am afraid, insufficient as the
size of coma increases. Taking this factor into
consideration, I surmise that the lightcurve should have shown a steeper
upclimbing slope as time passes. We can see the
computed Gauss curve
in the right and the real pixels
distributing narrowly deviating from the
ideal line. The Fit RMS, which inlays
under the Gauss curve, is the deviation from the ideal line.
By adding space vectors, I fed the data to
FindOrb to calculate the orbital elements for 249P with which I compared against
the orbital solution calculated from ground-based observations. Amazingly, there
are only some trivial differences.
Orbital elements:
249P/LINEAR
Perihelion 2011 Apr 16.193880 TT = 4:39:11 (JD
2455667.693880)
Epoch 2011 Apr 29.0 TT = JDT 2455680.5 Earth MOID: 0.0490
Ju: 0.7675
M 2.72778
(2000.0) Ve: 0.0259
Ma: 0.0265
n 0.21300600 Peri. 65.23631
+0.56986715 0.81139876
a 2.77678009 Node 240.12687
-0.79764560 0.50819340
e 0.8185661 Incl.
8.61802 -0.19751687
0.28874123
P 4.63
q 0.50380190 Q 5.04975828
From 225 observations 2011 Apr. 4-11; RMS error 15.578
arcseconds
# State vector (heliocentric ecliptic J2000):
# 0.558617820057 -0.108125899825
0.081575890448 AU
# 15.469262523743 26.148469757125
0.059079277548 mAU/day
# MOIDs: Me 0.1167 Ve 0.0259 Ea 0.0490 Ma 0.0265
# MOIDs: Ju 0.7675 Sa 4.1623 Ur 13.5539 Ne 25.0266
# Elements written: 17 Apr 2011 10:30:20 (JD 2455668.937731)
# Full range of obs: 2011 Apr. 4-11 (225 observations)
# Find_Orb ver: Oct 11 2010 13:08:42
# Perturbers: 000001fe
# Tisserand relative to Earth: 2.25288
# Tisserand relative to Jupiter: 2.70362
# Tisserand relative to Neptune: 11.17390
# Vis:
P/249&Epoch=20110429.000000&M=2.72778&e=0.8185662&a=2.7767801&Peri=65.23631&Node=240.12688&Incl=8.61803&Eqnx=2000.0
# SkM:
&OE_EPOCH=2455680.500&OE_EC=0.818566&OE_QR=0.503802&OE_TP=2455667.693880&OE_OM=240.126880&OE_W=65.236310&OE_IN=8.618027&OE_H=0.0
The following orbital elements are taken
from MPC:
249P/LINEAR
Epoch 2011 Apr. 29.0 TT = JDT 2455680.5
T 2011 Apr. 16.08039 TT MPC
q 0.5108785 (2000.0) P Q
n 0.21296098 Peri. 64.22877 +0.56082660 +0.81805919
a 2.7771715 Node 240.47145 -0.80239013 +0.49908899
e 0.8160436 Incl. 8.42514 -0.20406764 +0.28581347
P 4.63
From 373 observations 2006 Oct. 19-2011 Feb. 12, mean residual 0".5.
Copyright
©
Man-To Hui on
2011/04/16
 |
Comet 249P in HI1a
Images
Animation from 2011/04/04 02:09 UTC -
2010/04/07 23:29 UTC
each sequence 40 min apart;
original size and cropped;
processed by M.-T. Hui;
Courtesy of STEREO/SECCHI |
 |
2011/04/07 14:49 UT
Coma size: 6'.8
Tail: 13' in P.A. 86°;
5x resized and cropped;
Pixel size: 72".00 x 72".00;
Courtesy of STEREO/SECCHI |
Observations of 249P/LINEAR: computed with Astrometrica
- COD C49
MEA M.-T. Hui
NET CMC-14
0249P 4S2011 04 04.12432 08 42
45.06 +22 20 47.9 10.8
N C49
0249P 4s2011 04 04.12432 2
+1.18896331 -0.63595790 -0.27359154
C49
0249P 4S2011 04 04.15209 08 42
36.67 +22 22 55.2 11.8
N C49
0249P 4s2011 04 04.15209 2
+1.18933309 -0.63542697 -0.27336096
C49
0249P 4S2011 04 04.17987 08 42
24.75 +22 23 56.5 10.9
N C49
0249P 4s2011 04 04.17987 2
+1.18970259 -0.63489588 -0.27313031
C49
0249P 4S2011 04 04.31876 08 41
40.11 +22 30 49.7 10.9
N C49
0249P 4s2011 04 04.31876 2
+1.19154588 -0.63223784 -0.27197596
C49
0249P 4S2011 04 04.34654 08 41
28.07 +22 32 20.7 11.3
N C49
0249P 4s2011 04 04.34654 2
+1.19191369 -0.63170571 -0.27174486
C49
0249P 4S2011 04 04.37432 08 41
22.21 +22 33 39.6 11.3
N C49
0249P 4s2011 04 04.37432 2
+1.19228123 -0.63117342 -0.27151370
C49
0249P 4S2011 04 04.40209 08 41
11.10 +22 34 44.7 10.9
N C49
0249P 4s2011 04 04.40209 2
+1.19264849 -0.63064095 -0.27128246
C49
0249P 4S2011 04 04.42987 08 41
03.40 +22 36 06.6 11.4
N C49
0249P 4s2011 04 04.42987 2
+1.19301546 -0.63010831 -0.27105114
C49
0249P 4S2011 04 04.45765 08 40
50.39 +22 37 36.3 11.1
N C49
0249P 4s2011 04 04.45765 2
+1.19338216 -0.62957550 -0.27081976
C49
0249P 4S2011 04 04.48543 08 40
44.95 +22 38 52.8 10.7
N C49
0249P 4s2011 04 04.48543 2
+1.19374857 -0.62904252 -0.27058830
C49
0249P 4S2011 04 04.51321 08 40
35.76 +22 40 36.4 11.1
N C49
0249P 4s2011 04 04.51321 2
+1.19411471 -0.62850937 -0.27035676
C49
0249P 4S2011 04 04.54098 08 40
25.02 +22 42 00.2 10.7
N C49
0249P 4s2011 04 04.54098 2
+1.19448056 -0.62797604 -0.27012515
C49
0249P 4S2011 04 04.62432 08 39
56.25 +22 45 56.0 11.6
N C49
0249P 4s2011 04 04.62432 2
+1.19557643 -0.62637505 -0.26942989
C49
0249P 4S2011 04 04.65209 08 39
47.46 +22 47 21.4 11.3
N C49
0249P 4s2011 04 04.65209 2
+1.19594116 -0.62584105 -0.26919799
C49
0249P 4S2011 04 04.76321 08 39
07.97 +22 53 01.6 11.4
N C49
0249P 4s2011 04 04.76321 2
+1.19739726 -0.62370333 -0.26826966
C49
0249P 4S2011 04 04.84654 08 38
41.56 +22 56 49.3 10.9
N C49
0249P 4s2011 04 04.84654 2
+1.19848638 -0.62209826 -0.26757264
C49
0249P 4S2011 04 04.87432 08 38
26.71 +22 58 37.7 11.5
N C49
0249P 4s2011 04 04.87432 2
+1.19884885 -0.62156290 -0.26734016
C49
0249P 4S2011 04 04.90209 08 38
21.04 +22 59 37.4 10.5
N C49
0249P 4s2011 04 04.90209 2
+1.19921105 -0.62102737 -0.26710760
C49
0249P 4S2011 04 04.92987 08 38
11.94 +23 01 07.3 11.1
N C49
0249P 4s2011 04 04.92987 2
+1.19957296 -0.62049167 -0.26687497
C49
0249P 4S2011 04 04.95765 08 38
02.20 +23 02 46.0 10.7
N C49
0249P 4s2011 04 04.95765 2
+1.19993459 -0.61995580 -0.26664227
C49
0249P 4S2011 04 05.01321 08 37
44.54 +23 05 22.4
9.9 N C49
0249P 4s2011 04 05.01321 2
+1.20065700 -0.61888356 -0.26617665
C49
0249P 4S2011 04 05.04098 08 37
32.52 +23 06 44.4 11.7
N C49
0249P 4s2011 04 05.04098 2
+1.20101778 -0.61834719 -0.26594373
C49
0249P 4S2011 04 05.06876 08 37
22.65 +23 08 08.6 11.0
N C49
0249P 4s2011 04 05.06876 2
+1.20137828 -0.61781065 -0.26571074
C49
0249P 4S2011 04 05.09654 08 37
13.71 +23 09 26.4 10.7
N C49
0249P 4s2011 04 05.09654 2
+1.20173849 -0.61727394 -0.26547768
C49
0249P 4S2011 04 05.12432 08 37
01.72 +23 10 58.1 10.7
N C49
0249P 4s2011 04 05.12432 2
+1.20209842 -0.61673706 -0.26524454
C49
0249P 4S2011 04 05.29098 08 36
07.13 +23 18 49.6 10.3
N C49
0249P 4s2011 04 05.29098 2
+1.20425208 -0.61351227 -0.26384422
C49
0249P 4S2011 04 05.31876 08 35
53.86 +23 20 36.4 10.9
N C49
0249P 4s2011 04 05.31876 2
+1.20461003 -0.61297422 -0.26361058
C49
0249P 4S2011 04 05.56876 08 34
23.50 +23 32 42.6 10.9
N C49
0249P 4s2011 04 05.56876 2
+1.20781882 -0.60812426 -0.26150460
C49
0249P 4S2011 04 05.59654 08 34
11.37 +23 34 21.1 11.0
N C49
0249P 4s2011 04 05.59654 2
+1.20817393 -0.60758454 -0.26127025
C49
0249P 4S2011 04 05.62432 08 34
01.29 +23 35 40.2 10.6
N C49
0249P 4s2011 04 05.62432 2
+1.20852876 -0.60704466 -0.26103582
C49
0249P 4S2011 04 05.65209 08 33
52.86 +23 36 53.0 11.0
N C49
0249P 4s2011 04 05.65209 2
+1.20888331 -0.60650462 -0.26080133
C49
0249P 4S2011 04 05.67987 08 33
42.52 +23 38 37.7 10.2
N C49
0249P 4s2011 04 05.67987 2
+1.20923756 -0.60596441 -0.26056676
C49
0249P 4S2011 04 05.73543 08 33
21.17 +23 41 24.5
9.5 N C49
0249P 4s2011 04 05.73543 2
+1.20994523 -0.60488349 -0.26009741
C49
0249P 4S2011 04 05.76321 08 33
10.46 +23 42 39.7 11.0
N C49
0249P 4s2011 04 05.76321 2
+1.21029863 -0.60434278 -0.25986263
C49
0249P 4S2011 04 05.79098 08 33
00.49 +23 44 03.7 10.6
N C49
0249P 4s2011 04 05.79098 2
+1.21065175 -0.60380191 -0.25962778
C49
0249P 4S2011 04 05.81876 08 32
51.42 +23 45 20.9 11.2
N C49
0249P 4s2011 04 05.81876 2
+1.21100459 -0.60326087 -0.25939285
C49
0249P 4S2011 04 05.84654 08 32
38.18 +23 47 00.8
9.8 N C49
0249P 4s2011 04 05.84654 2
+1.21135714 -0.60271967 -0.25915786
C49
0249P 4S2011 04 05.87432 08 32
27.89 +23 48 09.6 10.0
N C49
0249P 4s2011 04 05.87432 2
+1.21170940 -0.60217830 -0.25892280
C49
0249P 4S2011 04 05.95765 08 31
58.57 +23 52 19.1 10.7
N C49
0249P 4s2011 04 05.95765 2
+1.21276448 -0.60055322 -0.25821718
C49
0249P 4S2011 04 05.98543 08 31
47.77 +23 53 36.9 10.6
N C49
0249P 4s2011 04 05.98543 2
+1.21311560 -0.60001120 -0.25798184
C49
0249P 4S2011 04 06.06876 08 31
15.87 +23 57 39.4 10.8
N C49
0249P 4s2011 04 06.06876 2
+1.21416726 -0.59838415 -0.25727538
C49
0249P 4S2011 04 06.09654 08 31
07.44 +23 59 07.3 10.7
N C49
0249P 4s2011 04 06.09654 2
+1.21451724 -0.59784147 -0.25703975
C49
0249P 4S2011 04 06.12432 08 30
55.64 +24 00 25.7 10.5
N C49
0249P 4s2011 04 06.12432 2
+1.21486693 -0.59729863 -0.25680405
C49
0249P 4S2011 04 06.15209 08 30
43.55 +24 01 48.2 10.8
N C49
0249P 4s2011 04 06.15209 2
+1.21521634 -0.59675562 -0.25656829
C49
0249P 4S2011 04 06.17987 08 30
32.53 +24 03 29.6 10.7
N C49
0249P 4s2011 04 06.17987 2
+1.21556546 -0.59621246 -0.25633245
C49
0249P 4S2011 04 06.20765 08 30
22.40 +24 04 44.1 10.1
N C49
0249P 4s2011 04 06.20765 2
+1.21591430 -0.59566913 -0.25609654
C49
0249P 4S2011 04 06.23543 08 30
12.14 +24 05 48.3 10.4
N C49
0249P 4s2011 04 06.23543 2
+1.21626284 -0.59512563 -0.25586056
C49
0249P 4S2011 04 06.26321 08 30
01.08 +24 07 16.8 11.0
N C49
0249P 4s2011 04 06.26321 2
+1.21661111 -0.59458198 -0.25562452
C49
0249P 4S2011 04 06.29098 08 29
50.67 +24 09 10.5 10.7
N C49
0249P 4s2011 04 06.29098 2
+1.21695908 -0.59403816 -0.25538840
C49
0249P 4S2011 04 06.31876 08 29
41.00 +24 10 06.9 10.2
N C49
0249P 4s2011 04 06.31876 2
+1.21730677 -0.59349418 -0.25515221
C49
0249P 4S2011 04 06.34654 08 29
28.97 +24 11 29.4 10.5
N C49
0249P 4s2011 04 06.34654 2
+1.21765418 -0.59295004 -0.25491595
C49
0249P 4S2011 04 06.37432 08 29
18.20 +24 12 59.4 10.5
N C49
0249P 4s2011 04 06.37432 2
+1.21800129 -0.59240573 -0.25467963
C49
0249P 4S2011 04 06.40209 08 29
07.20 +24 14 14.6 10.2
N C49
0249P 4s2011 04 06.40209 2
+1.21834812 -0.59186127 -0.25444323
C49
0249P 4S2011 04 06.42987 08 28
57.67 +24 15 37.8 10.6
N C49
0249P 4s2011 04 06.42987 2
+1.21869466 -0.59131664 -0.25420677
C49
0249P 4S2011 04 06.45765 08 28
45.92 +24 17 03.0 10.5
N C49
0249P 4s2011 04 06.45765 2
+1.21904092 -0.59077185 -0.25397023
C49
0249P 4S2011 04 06.48543 08 28
34.36 +24 18 28.7 11.1
N C49
0249P 4s2011 04 06.48543 2
+1.21938689 -0.59022689 -0.25373363
C49
0249P 4S2011 04 06.51321 08 28
23.51 +24 19 54.3 10.6
N C49
0249P 4s2011 04 06.51321 2
+1.21973257 -0.58968178 -0.25349695
C49
0249P 4S2011 04 06.54098 08 28
13.11 +24 21 14.3 10.5
N C49
0249P 4s2011 04 06.54098 2
+1.22007796 -0.58913650 -0.25326021
C49
0249P 4S2011 04 06.56876 08 28
02.66 +24 22 38.1 10.2
N C49
0249P 4s2011 04 06.56876 2
+1.22042307 -0.58859107 -0.25302340
C49
0249P 4S2011 04 06.59654 08 27
51.21 +24 23 56.3 10.8
N C49
0249P 4s2011 04 06.59654 2
+1.22076789 -0.58804547 -0.25278651
C49
0249P 4S2011 04 06.62432 08 27
41.06 +24 25 25.5 10.4
N C49
0249P 4s2011 04 06.62432 2
+1.22111242 -0.58749971 -0.25254956
C49
0249P 4S2011 04 06.65209 08 27
30.05 +24 26 47.0 10.1
N C49
0249P 4s2011 04 06.65209 2
+1.22145667 -0.58695379 -0.25231254
C49
0249P 4S2011 04 06.67987 08 27
19.50 +24 28 04.4 10.8
N C49
0249P 4s2011 04 06.67987 2
+1.22180062 -0.58640771 -0.25207545
C49
0249P 4S2011 04 06.70765 08 27
07.64 +24 29 37.3 10.4
N C49
0249P 4s2011 04 06.70765 2
+1.22214429 -0.58586147 -0.25183830
C49
0249P 4S2011 04 06.81876 08 26
25.00 +24 34 52.5
9.8 N C49
0249P 4s2011 04 06.81876 2
+1.22351609 -0.58367490 -0.25088897
C49
0249P 4S2011 04 06.84654 08 26
12.25 +24 36 20.0 10.8
N C49
0249P 4s2011 04 06.84654 2
+1.22385832 -0.58312786 -0.25065147
C49
0249P 4S2011 04 06.87432 08 25
59.93 +24 37 54.6 10.7
N C49
0249P 4s2011 04 06.87432 2
+1.22420026 -0.58258066 -0.25041390
C49
0249P 4S2011 04 06.90209 08 25
50.70 +24 39 11.2
9.9 N C49
0249P 4s2011 04 06.90209 2
+1.22454191 -0.58203330 -0.25017626
C49
0249P 4S2011 04 06.92987 08 25
40.37 +24 40 26.6 10.7
N C49
0249P 4s2011 04 06.92987 2
+1.22488328 -0.58148578 -0.24993855
C49
0249P 4S2011 04 06.95765 08 25
28.23 +24 41 58.0 10.6
N C49
0249P 4s2011 04 06.95765 2
+1.22522435 -0.58093810 -0.24970078
C49
0249P 4S2011 04 06.98543 08 25
16.60 +24 43 11.0 10.4
N C49
0249P 4s2011 04 06.98543 2
+1.22556514 -0.58039026 -0.24946293
C49
0249P 4S2011 04 07.01321 08 25
03.95 +24 44 40.7 10.8
N C49
0249P 4s2011 04 07.01321 2
+1.22590564 -0.57984226 -0.24922502
C49
0249P 4S2011 04 07.04098 08 24
54.31 +24 45 55.6 10.2
N C49
0249P 4s2011 04 07.04098 2
+1.22624585 -0.57929410 -0.24898704
C49
0249P 4S2011 04 07.06876 08 24
42.76 +24 47 16.0 10.2
N C49
0249P 4s2011 04 07.06876 2
+1.22658577 -0.57874578 -0.24874899
C49
0249P 4S2011 04 07.09654 08 24
31.93 +24 48 36.2 10.6
N C49
0249P 4s2011 04 07.09654 2
+1.22692540 -0.57819731 -0.24851087
C49
0249P 4S2011 04 07.12432 08 24
20.17 +24 50 12.1 10.4
N C49
0249P 4s2011 04 07.12432 2
+1.22726475 -0.57764867 -0.24827268
C49
0249P 4S2011 04 07.15209 08 24
09.33 +24 51 45.6
9.3 N C49
0249P 4s2011 04 07.15209 2
+1.22760380 -0.57709988 -0.24803443
C49
0249P 4S2011 04 07.20765 08 23
46.69 +24 53 56.1
9.8 N C49
0249P 4s2011 04 07.20765 2
+1.22828104 -0.57600182 -0.24755772
C49
0249P 4S2011 04 07.23543 08 23
35.02 +24 55 28.1 10.0
N C49
0249P 4s2011 04 07.23543 2
+1.22861923 -0.57545255 -0.24731926
C49
0249P 4S2011 04 07.26321 08 23
23.71 +24 56 48.0 10.5
N C49
0249P 4s2011 04 07.26321 2
+1.22895712 -0.57490313 -0.24708073
C49
0249P 4S2011 04 07.29098 08 23
11.65 +24 58 15.5 10.0
N C49
0249P 4s2011 04 07.29098 2
+1.22929473 -0.57435355 -0.24684214
C49
0249P 4S2011 04 07.31876 08 23
01.45 +24 59 30.2
9.9 N C49
0249P 4s2011 04 07.31876 2
+1.22963205 -0.57380381 -0.24660347
C49
0249P 4S2011 04 07.34654 08 22
48.46 +25 01 00.7 10.2
N C49
0249P 4s2011 04 07.34654 2
+1.22996908 -0.57325391 -0.24636475
C49
0249P 4S2011 04 07.37432 08 22
39.47 +25 02 26.8 10.0
N C49
0249P 4s2011 04 07.37432 2
+1.23030582 -0.57270385 -0.24612595
C49
0249P 4S2011 04 07.40209 08 22
26.46 +25 03 45.2
9.8 N C49
0249P 4s2011 04 07.40209 2
+1.23064226 -0.57215364 -0.24588708
C49
0249P 4S2011 04 07.42987 08 22
15.32 +25 04 56.4 10.4
N C49
0249P 4s2011 04 07.42987 2
+1.23097842 -0.57160327 -0.24564815
C49
0249P 4S2011 04 07.45765 08 22
03.00 +25 06 24.5 10.3
N C49
0249P 4s2011 04 07.45765 2
+1.23131429 -0.57105274 -0.24540915
C49
0249P 4S2011 04 07.48543 08 21
51.37 +25 07 39.9 10.2
N C49
0249P 4s2011 04 07.48543 2
+1.23164987 -0.57050206 -0.24517008
C49
0249P 4S2011 04 07.51321 08 21
40.35 +25 08 56.4 10.0
N C49
0249P 4s2011 04 07.51321 2
+1.23198516 -0.56995121 -0.24493095
C49
0249P 4S2011 04 07.54098 08 21
28.91 +25 10 30.3 10.1
N C49
0249P 4s2011 04 07.54098 2
+1.23232016 -0.56940022 -0.24469175
C49
0249P 4S2011 04 07.56876 08 21
17.10 +25 11 43.6
9.9 N C49
0249P 4s2011 04 07.56876 2
+1.23265487 -0.56884906 -0.24445248
C49
0249P 4S2011 04 07.59654 08 21
06.35 +25 12 59.4 10.5
N C49
0249P 4s2011 04 07.59654 2
+1.23298928 -0.56829775 -0.24421314
C49
0249P 4S2011 04 07.62432 08 20
53.85 +25 14 29.7
9.9 N C49
0249P 4s2011 04 07.62432 2
+1.23332341 -0.56774628 -0.24397374
C49
0249P 4S2011 04 07.65209 08 20
42.66 +25 15 45.4 10.0
N C49
0249P 4s2011 04 07.65209 2
+1.23365725 -0.56719466 -0.24373427
C49
0249P 4S2011 04 07.67987 08 20
29.75 +25 17 15.7
9.7 N C49
0249P 4s2011 04 07.67987 2
+1.23399080 -0.56664288 -0.24349473
C49
0249P 4S2011 04 07.70765 08 20
17.14 +25 18 38.0 10.3
N C49
0249P 4s2011 04 07.70765 2
+1.23432405 -0.56609095 -0.24325513
C49
0249P 4S2011 04 07.73543 08 20
07.58 +25 19 41.9
9.6 N C49
0249P 4s2011 04 07.73543 2
+1.23465702 -0.56553886 -0.24301546
C49
0249P 4S2011 04 07.76321 08 19
56.15 +25 21 03.3 10.2
N C49
0249P 4s2011 04 07.76321 2
+1.23498969 -0.56498661 -0.24277572
C49
0249P 4S2011 04 07.79098 08 19
43.72 +25 22 37.2 10.0
N C49
0249P 4s2011 04 07.79098 2
+1.23532207 -0.56443421 -0.24253591
C49
0249P 4S2011 04 07.81876 08 19
32.48 +25 23 49.6 10.0
N C49
0249P 4s2011 04 07.81876 2
+1.23565416 -0.56388165 -0.24229604
C49
0249P 4S2011 04 07.84654 08 19
20.80 +25 25 17.2 10.5
N C49
0249P 4s2011 04 07.84654 2
+1.23598597 -0.56332894 -0.24205610
C49
0249P 4S2011 04 07.87432 08 19
08.23 +25 26 41.6 10.4
N C49
0249P 4s2011 04 07.87432 2
+1.23631748 -0.56277607 -0.24181610
C49
0249P 4S2011 04 07.90209 08 18
55.71 +25 27 53.2
9.9 N C49
0249P 4s2011 04 07.90209 2
+1.23664869 -0.56222305 -0.24157602
C49
0249P 4S2011 04 07.92987 08 18
47.93 +25 29 03.7 10.5
N C49
0249P 4s2011 04 07.92987 2
+1.23697962 -0.56166987 -0.24133589
C49
0249P 4S2011 04 07.95765 08 18
33.30 +25 30 43.1 10.0
N C49
0249P 4s2011 04 07.95765 2
+1.23731026 -0.56111654 -0.24109568
C49
0249P 4S2011 04 07.98543 08 18
19.10 +25 31 53.7 10.0
N C49
0249P 4s2011 04 07.98543 2
+1.23764060 -0.56056305 -0.24085541
C49
----- end -----
-
I employed Comets for Windows
to plot the following graph with all the above data. We can see that the
magnitude is steadily increasing as it moves towards its perihelion.
Gauss curve produced by
Astrometrica. The total PSF is using an aperture circle of
2 x
2 pixel around the brightest
pixel. We can see the
computed Gauss curve
in the right and the real pixels
distributing somewhat deviating from the
ideal line. The Fit RMS, which inlays
under the Gauss curve, is the deviation from the ideal line.
Copyright
©
Man-To Hui on
2011/04/10
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