Measurements of comet C/1999 S4 LINEAR
We follow this comet during 61 nights from 10/4/1999 to 7/21/2000.
Positions are measured with QMIPS32 and
PRISM v4.0
by our observing and image processing team.
156 positions confirmed by the MPC are given below :
CJ99S040 C1999 10 04.03621 04 59 49.06 +34
47 34.1
958
CJ99S040 C1999 10 04.05918 04 59 48.14 +34
47 40.9
958
CJ99S040 C1999 10 04.07835 04 59 47.16 +34
47 43.9
958
CJ99S040 C1999 10 05.01107 04 59 07.33 +34
52 07.6
958
CJ99S040 C1999 10 05.03099 04 59 06.57 +34
52 13.0
958
CJ99S040 C1999 10 05.04491 04 59 05.82 +34
52 16.7
958
CJ99S040 C1999 10 06.03311 04 58 21.75 +34
56 54.6
958
CJ99S040 C1999 10 06.04495 04 58 21.14 +34
56 57.7
958
CJ99S040 C1999 10 07.04420 04 57 34.73 +35
01 37.8
958
CJ99S040 C1999 10 07.06048 04 57 33.85 +35
01 40.8
958
CJ99S040 C1999 10 09.05607 04 55 55.27 +35
11 00.0
958
CJ99S040 C1999 10 09.08031 04 55 53.99 +35
11 05.8
958
CJ99S040 C1999 10 10.98748 04 54 11.78 +35
19 58.4
958
CJ99S040 C1999 10 11.00314 04 54 11.10 +35
20 02.8
958
CJ99S040 C1999 10 11.01951 04 54 10.06 +35
20 05.6
958
CJ99S040 C1999 10 15.96719 04 49 09.96 +35
42 36.4
958
CJ99S040 C1999 10 15.98770 04 49 08.42 +35
42 41.7
958
CJ99S040 C1999 10 16.00359 04 49 07.68 +35
42 46.9
958
CJ99S040 C1999 10 22.88260 04 40 40.93 +36
12 11.0
958
CJ99S040 C1999 10 22.91563 04 40 38.25 +36
12 19.7
958
CJ99S040 C1999 10 22.93184 04 40 36.98 +36
12 24.0
958
CJ99S040 C1999 10 31.93228 04 26 49.82 +36
44 28.6
958
CJ99S040 C1999 10 31.95064 04 26 47.95 +36
44 31.8
958
CJ99S040 C1999 10 31.96638 04 26 46.30 +36
44 35.2
958
CJ99S040 C1999 11 05.01302 04 19 33.46 +36
55 20.8
958
CJ99S040 C1999 11 05.03578 04 19 30.90 +36
55 24.3
958
CJ99S040 C1999 11 07.90783 04 14 01.71 +37
01 12.9
958
CJ99S040 C1999 11 07.93754 04 13 58.46 +37
01 17.7
958
CJ99S040 C1999 11 07.97790 04 13 53.48 +37
01 21.4
958
CJ99S040 C1999 11 26.82924 03 31 56.26 +36
48 55.4
958
CJ99S040 C1999 11 26.85856 03 31 52.01 +36
48 49.6
958
CJ99S040 C1999 11 26.89988 03 31 45.83 +36
48 41.0
958
CJ99S040 C1999 11 27.92011 03 29 18.58 +36
45 05.2
958
CJ99S040 C1999 11 27.93787 03 29 15.96 +36
45 00.7
958
CJ99S040 C1999 11 27.95276 03 29 13.71 +36
44 57.0
958
CJ99S040 C1999 12 03.76677 03 15 08.81 +36
18 19.4
958
CJ99S040 C1999 12 03.77317 03 15 07.78 +36
18 15.5
958
CJ99S040 C1999 12 03.79372 03 15 04.88 +36
18 06.9
958
CJ99S040 C1999 12 05.81203 03 10 12.38 +36
06 32.4
958
CJ99S040 C1999 12 05.83350 03 10 09.03 +36
06 26.4
958
CJ99S040 C1999 12 05.85332 03 10 06.44 +36
06 19.8
958
CJ99S040 C1999 12 06.99453 03 07 21.72 +35
59 14.9
958
CJ99S040 C1999 12 07.81500 03 05 24.19 +35
53 58.6
958
CJ99S040 C1999 12 07.86210 03 05 17.56 +35
53 38.3
958
CJ99S040 C1999 12 11.89541 02 55 47.43 +35
24 59.6
958
CJ99S040 C1999 12 11.94863 02 55 39.84 +35
24 36.3
958
CJ99S040 C1999 12 11.99028 02 55 34.15 +35
24 17.7
958
CJ99S040 C1999 12 12.93682 02 53 22.92 +35
16 58.8
958
CJ99S040 C1999 12 15.82663 02 46 49.75 +34
53 29.9
958
CJ99S040 C1999 12 15.85717 02 46 45.75 +34
53 14.4
958
CJ99S040 C1999 12 29.78526 02 18 35.72 +32
43 08.3
958
CJ99S040 C1999 12 29.81238 02 18 32.42 +32
42 52.5
958
CJ99S040 C1999 12 29.85005 02 18 28.61 +32
42 31.0
958
CJ99S040 C2000 01 05.94089 02 06 47.09 +31
32 26.3
958
CJ99S040 C2000 01 06.89642 02 05 21.40 +31
23 07.8
958
CJ99S040 C2000 01 06.91650 02 05 19.28 +31
22 54.2
958
CJ99S040 C2000 01 09.80574 02 01 13.28 +30
55 04.2
958
CJ99S040 C2000 01 09.86757 02 01 07.84 +30
54 26.0
958
CJ99S040 C2000 01 10.78266 01 59 54.02 +30
45 46.6
958
CJ99S040 C2000 01 10.79524 01 59 52.98 +30
45 39.3
958
CJ99S040 C2000 01 10.81748 01 59 51.18 +30
45 26.5
958
CJ99S040 C2000 01 14.77502 01 54 53.23 +30
08 49.7
958
CJ99S040 C2000 01 14.83936 01 54 48.64 +30
08 14.9
958
CJ99S040 C2000 01 15.82892 01 53 39.59 +29
59 21.8
958
CJ99S040 C2000 01 17.80168 01 51 28.21 +29
41 59.7
958
CJ99S040 C2000 01 17.82355 01 51 26.91 +29
41 49.3
958
CJ99S040 C2000 01 20.77399 01 48 26.19 +29
16 51.1
958
CJ99S040 C2000 01 20.80076 01 48 24.65 +29
16 38.0
958
CJ99S040 C2000 01 25.78400 01 43 59.06 +28
37 19.1
958
CJ99S040 C2000 01 25.80674 01 43 57.90 +28
37 08.7
958
CJ99S040 C2000 01 26.75935 01 43 12.80 +28
30 03.1
958
CJ99S040 C2000 01 26.78203 01 43 11.57 +28
29 53.4
958
CJ99S040 C2000 01 26.80510 01 43 10.52 +28
29 44.0
958
CJ99S040 C2000 01 27.85443 01 42 22.72 +28
22 05.7
958
CJ99S040 C2000 01 27.86810 01 42 22.05 +28
22 00.1
958
CJ99S040 C2000 01 27.88161 01 42 21.47 +28
21 53.8
958
CJ99S040 C2000 01 28.77747 01 41 42.33 +28
15 32.0
958
CJ99S040 C2000 01 28.79499 01 41 41.56 +28
15 24.6
958
CJ99S040 C2000 01 28.81917 01 41 40.53 +28
15 14.6
958
CJ99S040 C2000 01 31.78547 01 39 41.38 +27
55 08.8
958
CJ99S040 C2000 01 31.80874 01 39 40.33 +27
54 58.8
958
CJ99S040 C2000 01 31.83236 01 39 39.53 +27
54 49.7
958
CJ99S040 C2000 02 03.79350 01 37 55.82 +27
36 13.0
958
CJ99S040 C2000 02 03.81338 01 37 55.19 +27
36 05.2
958
CJ99S040 C2000 02 03.84377 01 37 54.13 +27
35 56.0
958
CJ99S040 C2000 02 09.76744 01 35 09.48 +27
03 14.1
958
CJ99S040 C2000 02 09.84422 01 35 07.64 +27
02 51.5
958
CJ99S040 C2000 02 11.81319 01 34 24.74 +26
53 21.9
958
CJ99S040 C2000 02 11.82903 01 34 24.24 +26
53 17.0
958
CJ99S040 C2000 02 21.79447 01 32 04.70 +26
15 05.4
958
CJ99S040 C2000 02 21.81840 01 32 04.64 +26
15 01.3
958
CJ99S040 C2000 02 24.78414 01 31 45.71 +26
06 44.8
958
CJ99S040 C2000 02 24.82297 01 31 45.46 +26
06 38.1
958
CJ99S040 C2000 02 26.81459 01 31 37.99 +26
01 50.7
958
CJ99S040 C2000 02 26.83876 01 31 37.91 +26
01 47.9
958
CJ99S040 C2000 03 04.80601 01 31 42.28 +25
49 46.7
958
CJ99S040 C2000 03 05.81689 01 31 46.50 +25
48 36.2
958
CJ99S040 C2000 03 05.84503 01 31 46.64 +25
48 34.4
958
CJ99S040 C2000 03 06.84416 01 31 51.88 +25
47 35.0
958
CJ99S040 C2000 03 06.85168 01 31 51.85 +25
47 35.3
958
CJ99S040 C2000 03 07.80216 01 31 57.30 +25
46 46.3
958
CJ99S040 C2000 03 07.81072 01 31 57.34 +25
46 45.8
958
CJ99S040 C2000 03 09.84137 01 32 11.48 +25
45 27.0
958
CJ99S040 C2000 03 09.84890 01 32 11.76 +25
45 28.8
958
CJ99S040 C2000 03 10.81146 01 32 19.59 +25
45 00.8
958
CJ99S040 C2000 03 10.82010 01 32 19.75 +25
44 59.3
958
CJ99S040 C2000 03 11.81678 01 32 28.52 +25
44 41.5
958
CJ99S040 C2000 03 15.81971 01 33 10.98 +25
44 47.7
958
CJ99S040 C2000 03 15.84296 01 33 11.19 +25
44 46.7
958
CJ99S040 C2000 03 24.81465 01 35 22.51 +25
52 18.6
958
CJ99S040 C2000 06 17.12517 02 16 46.20 +36
31 18.2
958
CJ99S040 C2000 06 17.12839 02 16 46.36 +36
31 22.5
958
CJ99S040 C2000 06 17.13160 02 16 46.55 +36
31 26.7
958
CJ99S040 C2000 06 17.13304 02 16 46.68 +36
31 27.6
958
CJ99S040 C2000 06 17.13730 02 16 46.88 +36
31 33.4
958
CJ99S040 C2000 06 18.11519 02 17 39.13 +36
52 31.3
958
CJ99S040 C2000 06 18.12155 02 17 39.46 +36
52 39.9
958
CJ99S040 C2000 06 18.12543 02 17 39.68 +36
52 44.9
958
CJ99S040 C2000 06 18.13002 02 17 39.94 +36
52 51.1
958
CJ99S040 C2000 06 18.13427 02 17 40.16 +36
52 56.7
958
CJ99S040 C2000 06 26.06589 02 27 01.80 +40
26 00.9
958
CJ99S040 C2000 06 26.06881 02 27 02.08 +40
26 06.6
958
CJ99S040 C2000 06 26.08458 02 27 03.58 +40
26 38.3
958
CJ99S040 C2000 06 26.10881 02 27 05.82 +40
27 27.1
958
CJ99S040 C2000 06 26.11170 02 27 06.09 +40
27 32.8
958
CJ99S040 C2000 07 01.10421 02 37 01.75 +43
41 28.9
958
CJ99S040 C2000 07 01.11856 02 37 03.87 +43
42 08.7
958
CJ99S040 C2000 07 01.13185 02 37 05.93 +43
42 45.3
958
CJ99S040 C2000 07 01.14605 02 37 08.08 +43
43 24.5
958
CJ99S040 C2000 07 01.14894 02 37 08.51 +43
43 32.3
958
CJ99S040 C2000 07 07.07417 02 59 34.84 +49
22 37.8
958
CJ99S040 C2000 07 07.08954 02 59 40.00 +49
23 44.2
958
CJ99S040 C2000 07 07.11777 02 59 49.43 +49
25 46.3
958
CJ99S040 C2000 07 08.05731 03 05 30.52 +50
35 24.0
958
CJ99S040 C2000 07 08.07056 03 05 35.72 +50
36 25.9
958
CJ99S040 C2000 07 08.07485 03 05 37.47 +50
36 45.9
958
CJ99S040 C2000 07 11.08932 03 31 40.97 +54
57 37.9
958
CJ99S040 C2000 07 11.09146 03 31 42.43 +54
57 50.4
958
CJ99S040 C2000 07 11.11299 03 31 57.11 +54
59 55.9
958
CJ99S040 C2000 07 11.11441 03 31 58.07 +55
00 04.2
958
CJ99S040 C2000 07 11.11656 03 31 59.54 +55
00 16.7
958
CJ99S040 C2000 07 12.91897 03 56 52.37 +58
02 54.5
958
CJ99S040 C2000 07 12.92257 03 56 55.99 +58
03 17.7
958
CJ99S040 C2000 07 12.95058 03 57 24.29 +58
06 15.7
958
CJ99S040 C2000 07 12.97084 03 57 44.93 +58
08 25.1
958
CJ99S040 C2000 07 12.97442 03 57 48.59 +58
08 48.0
958
CJ99S040 C2000 07 16.07627 05 14 07.46 +63
26 35.3
958
CJ99S040 C2000 07 16.08524 05 14 26.04 +63
27 21.9
958
CJ99S040 C2000 07 16.11539 05 15 28.78 +63
29 59.5
958
CJ99S040 C2000 07 16.12058 05 15 39.57 +63
30 26.2
958
CJ99S040 C2000 07 16.12573 05 15 50.18 +63
30 53.3
958
CJ99S040 C2000 07 20.87871 08 57 20.45 +60
42 36.3
958
CJ99S040 C2000 07 20.89436 08 58 02.38 +60
39 27.9
958
CJ99S040 C2000 07 20.92764 08 59 31.47 +60
32 42.5
958
CJ99S040 C2000 07 21.04359 09 04 38.04 +60
08 40.9
958
CJ99S040 C2000 07 21.11427 09 07 41.93 +59
53 38.6
958
We then calculate with Findorb the following orbital
elements :
C/1999S4 (LINEAR)
Perihelion 2000 Jul 26.180559 TT
Epoch 2000 Jul 15.0 TT = JDT 2451740.5
q 0.7651144
(2000.0)
P
Q
Peri. 151.06307 0.30970531
-0.80526213
Node 83.18962 -0.94057935
-0.18158166
e 0.9999981 Incl. 149.38964
-0.13925911 -0.56442981
From 150 observations 1999 Oct. 4-2000 Jul. 21; RMS error
2.758 arcseconds
Orbital elements calculated by Findorb with our
positions are really close to orbital elements calculated by the MPC and given on the
MPEC O07.
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