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
1999-09-13 07:12:31 C 00 35 00.91 -12 24 55.6 17.6 a 704
1999-09-13 07:28:56 C 00 35 00.11 -12 24 54.9 18.0 a 704
1999-09-13 07:45:38 C 00 34 59.35 -12 24 53.3 17.8 a 704
1999-09-13 08:02:01 C 00 34 58.58 -12 24 52.8 17.5 a 704
1999-09-13 08:14:23 C 00 34 58.26 -12 24 53.1 848
1999-09-13 08:26:16 C 00 34 57.71 -12 24 52.7 848
1999-09-13 08:40:16 C 00 34 57.07 -12 24 52.1 848
1999-09-15 08:23:22 C 00 32 53.58 -12 22 00.6 848
1999-09-15 08:38:53 C 00 32 52.84 -12 21 59.2 848
1999-09-15 08:49:57 C 00 32 52.33 -12 21 58.8 848
1999-09-16 08:13:13 C 00 31 50.89 -12 20 17.2 848
1999-09-16 08:25:46 C 00 31 50.34 -12 20 15.8 848
1999-09-16 08:37:48 C 00 31 49.77 -12 20 15.4 848
1999-09-30 07:55:08 C 00 17 23.28 -11 32 29.2 17.8 a 704
1999-09-30 08:13:24 C 00 17 22.52 -11 32 26.2 18.0 a 704
1999-09-30 08:31:28 C 00 17 21.70 -11 32 21.8 17.6 a 704
1999-09-30 08:49:30 C 00 17 20.94 -11 32 18.3 18.1 a 704
1999-09-30 09:07:35 C 00 17 20.21 -11 32 14.6 18.0 a 704
1999-10-16 06:01:29 C 00 06 03.10 -09 47 06.6 18.5 a 704
1999-10-16 06:30:46 C 00 06 02.46 -09 46 56.7 18.6 a 704
1999-10-16 06:55:00 C 00 06 01.93 -09 46 48.7 18.5 a 704
1999-10-16 07:17:30 C 00 06 01.43 -09 46 42.1 18.6 a 704
1999-10-16 07:44:17 C 00 06 00.87 -09 46 32.3 19.0 a 704
2002-03-10 09:54:50 C 12 11 58.97 +07 52 07.1 c 696
2002-03-10 10:00:44 C 12 11 58.66 +07 52 08.6 c 696
2002-04-02 08:39:14 C 11 45 32.77 +10 24 23.6 20.3 m 644
2002-04-02 09:09:34 C 11 45 31.27 +10 24 29.8 20.1 m 644
2002-04-02 09:39:39 C 11 45 29.77 +10 24 36.3 20.2 m 644
2002-04-16 06:00:06 C 11 30 59.65 +11 15 55.3 19.7 c 704
2002-04-16 06:20:25 C 11 30 58.92 +11 15 57.5 19.9 c 704
2002-04-16 07:00:51 C 11 30 57.36 +11 16 01.8 19.8 c 704
2002-04-16 07:21:04 C 11 30 56.54 +11 16 04.5 20.1 c 704
2003-12-13 04:09:04 C 05 49 47.79 +27 10 23.5 o 950
2003-12-13 04:10:05 C 05 49 47.67 +27 10 23.9 o 950
2005-02-04 06:08:40 C 10 05 36.026 +20 25 32.28 645
2005-02-04 06:09:51 C 10 05 35.981 +20 25 32.51 645
2005-02-04 06:13:26 C 10 05 35.821 +20 25 33.39 645
2006-08-28 11:17:26 C 03 38 59.60 +14 45 16.3 r 703
2006-08-28 11:24:23 C 03 38 59.89 +14 45 16.0 r 703
2006-08-28 11:31:22 C 03 39 00.21 +14 45 17.2 r 703
2006-08-28 11:38:17 C 03 39 00.39 +14 45 17.5 r 703
2006-09-30 09:17:40 C 03 46 26.97 +15 52 31.6 r 703
2006-09-30 09:34:32 C 03 46 26.61 +15 52 32.1 r 703
2006-09-30 09:51:26 C 03 46 26.29 +15 52 32.4 r 703
2006-09-30 10:08:17 C 03 46 25.86 +15 52 32.8 r 703
2006-09-30 10:57:45 C 03 46 24.81 +15 52 32.8 r G96
2006-09-30 11:08:39 C 03 46 24.56 +15 52 33.2 r G96
2006-09-30 11:19:20 C 03 46 24.31 +15 52 33.4 r G96
2006-09-30 11:30:09 C 03 46 24.09 +15 52 33.6 r G96
2006-10-16 09:17:03 C 03 33 41.97 +15 45 44.8 r 703