39557 Gielgud (1992 JG)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4261614275 ± 2.16e-08
Semi-major axis (a)2.2638033855 AU ± 2.20e-09
Inclination (i)5.54729065° ± 3.13e-06
Long. of Asc. Node (Ω)58.45697784° ± 3.28e-05
Arg. of Perihelion (ω)239.99690005° ± 3.30e-05
Mean Anomaly (M)268.05430012° ± 3.70e-06
Mean Motion (n)0.2893704759°/day ± 4.21e-10
Perihelion dist (q)1.29905770 AU ± 4.89e-08
Aphelion dist (Q)3.22854907 AU ± 4.90e-08
Orbital Period3.40610520 yr ± 4.96e-09
Physical Parameters
H (abs. magnitude)17.02
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.368″
Uncertainty0
Orbit TypeAmor
MOID0.296754 AU
Observations Used559
Oppositions23
Arc Total1992-2025
First Observation Used1992-05-02
Last Observation Used2025-12-20
Observations (584)
Date Type RA Dec Mag Band Observatory
1992-05-02 07:16:20 c 14 22 31.79 -09 29 34.5 i 691
1992-05-02 07:51:42 c 14 22 29.80 -09 29 32.9 i 691
1992-05-02 08:30:30 c 14 22 27.64 -09 29 31.1 i 691
1992-05-03 04:24:56 c 14 21 25.11 -09 28 47.2 i 691
1992-05-03 04:38:02 c 14 21 24.39 -09 28 46.6 i 691
1992-05-03 04:50:23 c 14 21 23.70 -09 28 46.1 i 691
1992-05-03 09:30:20 c 14 21 07.98 -09 28 37.1 i 691
1992-05-03 09:53:09 c 14 21 06.74 -09 28 35.7 i 691
1992-05-04 09:35:11 c 14 19 50.88 -09 27 50.2 i 691
1992-05-04 09:50:33 c 14 19 50.05 -09 27 49.8 i 691
1992-05-04 10:05:43 c 14 19 49.18 -09 27 49.1 i 691
1992-05-09 05:19:37 c 14 13 38.22 -09 25 47.1 i 691
1992-05-09 05:30:32 c 14 13 37.60 -09 25 47.4 i 691
1992-05-09 05:57:40 c 14 13 35.86 -09 25 46.9 i 691
1992-05-09 06:13:23 c 14 13 35.03 -09 25 48.9 i 691
1992-05-09 06:29:29 c 14 13 34.14 -09 25 47.3 i 691
1992-05-30 11:05:54 13 50 50.62 -10 07 22.0 413
1992-05-30 12:05:55 13 50 48.56 -10 07 32.7 413
1992-06-01 06:14:33 c 13 49 37.08 -10 15 59.0 i 691
1992-06-01 06:44:34 c 13 49 36.28 -10 16 06.1 i 691
1992-06-01 07:01:43 c 13 49 35.82 -10 16 09.7 i 691
1992-06-01 07:18:09 c 13 49 35.45 -10 16 13.1 i 691
1992-07-05 11:18:00 C 13 58 12.12 -15 30 44.9 413
1992-07-05 11:21:42 C 13 58 12.29 -15 30 47.0 413
1992-08-21 09:47:38 C 15 42 18.10 -26 52 20.5 413
1992-08-21 09:51:20 C 15 42 18.58 -26 52 22.5 413
1992-08-22 10:39:19 C 15 45 39.36 -27 05 46.1 413
1992-08-22 10:43:09 C 15 45 39.86 -27 05 47.7 413
1999-08-03 18:35:59 C 00 41 19.50 -12 37 52.3 413
1999-08-03 18:39:47 C 00 41 19.65 -12 37 51.9 413
1999-08-03 19:11:35 C 00 41 20.83 -12 37 48.9 413
1999-08-04 13:49:42 C 00 42 07.85 -12 36 09.0 413
1999-08-04 13:55:28 C 00 42 08.06 -12 36 08.5 413
1999-08-04 14:02:50 C 00 42 08.35 -12 36 07.9 413
1999-08-04 14:05:42 C 00 42 08.46 -12 36 07.7 413
1999-08-16 15:36:13 C 00 49 07.76 -12 23 59.6 422
1999-08-16 15:38:28 C 00 49 07.73 -12 24 00.0 422
1999-08-22 16:21:54 C 00 49 16.35 -12 25 03.5 z 402
1999-08-22 16:23:43 C 00 49 16.33 -12 25 03.4 z 402
1999-08-22 16:27:21 C 00 49 16.28 -12 25 03.5 z 402
1999-08-31 16:39:58 C 00 45 43.40 -12 28 22.3 413
1999-08-31 16:42:42 C 00 45 43.31 -12 28 22.3 413
1999-08-31 16:45:55 C 00 45 43.22 -12 28 22.3 413
1999-09-03 22:45:59 C 00 43 29.59 -12 29 27.6 c 118
1999-09-03 22:51:47 C 00 43 29.38 -12 29 27.9 c 118
1999-09-08 08:21:34 c 00 39 48.77 -12 28 50.8 d 703
1999-09-08 08:36:07 c 00 39 48.17 -12 28 50.7 d 703
1999-09-08 08:50:32 c 00 39 47.55 -12 28 50.3 d 703
1999-09-08 09:05:04 c 00 39 46.93 -12 28 50.3 d 703
1999-09-13 06:56:12 C 00 35 01.68 -12 24 55.9 17.3 a 704