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
2008-02-07 06:29:05 C 07 59 04.88 +27 48 37.1 r G96
2008-02-07 06:38:34 C 07 59 04.52 +27 48 38.0 r G96
2008-02-07 06:48:00 C 07 59 04.09 +27 48 39.0 r G96
2009-03-18 09:01:25 C 14 11 24.83 -06 05 22.0 o 691
2009-03-18 09:23:20 C 14 11 24.51 -06 05 20.0 o 691
2009-03-24 07:07:32 C 14 09 10.18 -05 50 10.9 19.4 c 704
2009-03-24 07:42:46 C 14 09 09.40 -05 50 06.6 19.5 c 704
2009-03-24 08:00:16 C 14 09 08.97 -05 50 03.0 20.2 c 704
2009-03-24 08:17:46 C 14 09 08.66 -05 50 02.6 19.3 c 704
2009-03-27 07:20:36 C 14 07 31.67 -05 40 52.7 o 691
2009-03-27 07:50:18 C 14 07 30.82 -05 40 48.3 o 691
2009-03-29 07:09:31 C 14 06 15.39 -05 34 11.3 o 691
2009-03-29 07:34:59 C 14 06 14.64 -05 34 07.6 o 691
2009-03-29 08:00:28 C 14 06 13.86 -05 34 04.2 o 691
2009-03-31 08:32:47 C 14 04 47.31 -05 26 55.1 r 703
2009-03-31 08:46:15 C 14 04 46.84 -05 26 52.7 r 703
2009-03-31 08:59:47 C 14 04 46.45 -05 26 50.2 r 703
2009-03-31 09:13:14 C 14 04 45.98 -05 26 47.8 r 703
2009-04-02 07:13:46 C 14 03 16.26 -05 19 41.3 o 691
2009-04-02 07:39:15 C 14 03 15.35 -05 19 37.2 o 691
2009-04-02 08:04:45 C 14 03 14.43 -05 19 33.1 o 691
2009-04-17 07:28:31 C 13 47 38.32 -04 18 30.4 r 703
2009-04-17 07:37:11 C 13 47 37.78 -04 18 29.0 r 703
2009-04-17 07:45:45 C 13 47 37.32 -04 18 27.7 r 703
2009-04-17 07:54:22 C 13 47 36.85 -04 18 26.2 r 703
2009-04-20 14:27:51 C 13 43 31.35 -04 05 22.7 r D29
2009-04-20 14:47:04 C 13 43 30.30 -04 05 20.4 r D29
2009-04-20 15:04:21 C 13 43 29.33 -04 05 17.2 r D29
2009-04-20 15:22:07 C 13 43 28.34 -04 05 14.0 r D29
2009-04-21 07:35:11 C 13 42 36.34 -04 02 37.8 18.1 c 704
2009-04-21 07:54:19 C 13 42 35.26 -04 02 34.8 18.4 c 704
2009-04-21 08:10:57 C 13 42 34.32 -04 02 31.7 19.2 c 704
2009-04-21 08:28:57 C 13 42 33.35 -04 02 29.0 18.4 c 704
2009-04-21 08:46:45 C 13 42 32.36 -04 02 25.9 18.2 c 704
2009-04-27 07:45:14 C 13 34 47.57 -03 41 37.8 17.9 c 704
2009-04-27 08:01:51 C 13 34 46.61 -03 41 35.3 18.3 c 704
2009-04-27 08:19:49 C 13 34 45.62 -03 41 33.7 18.3 c 704
2009-04-27 08:36:01 C 13 34 44.69 -03 41 31.5 18.1 c 704
2009-04-27 08:57:44 C 13 34 43.47 -03 41 28.3 18.1 c 704
2009-04-27 20:05:04 C 13 34 07.65 -03 40 04.8 A50
2009-04-27 20:07:17 C 13 34 07.54 -03 40 04.7 A50
2009-04-27 20:09:30 C 13 34 07.40 -03 40 04.4 A50
2009-04-27 20:50:49 C 13 34 05.06 -03 39 59.5 A50
2009-04-28 05:55:26 C 13 33 35.56 -03 38 48.7 r 703
2009-04-28 06:06:56 C 13 33 34.88 -03 38 46.8 r 703
2009-04-28 06:18:19 C 13 33 34.23 -03 38 46.3 r 703
2009-04-28 06:29:44 C 13 33 33.58 -03 38 44.9 r 703
2009-04-29 06:35:53 C 13 32 15.25 -03 35 51.5 r G96
2009-04-29 06:49:31 C 13 32 14.49 -03 35 50.0 r G96
2009-04-29 07:03:12 C 13 32 13.70 -03 35 48.5 r G96