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
2015-01-17 09:54:49 C 09 16 30.296 +23 38 45.64 L F51
2015-01-17 10:12:06 C 09 16 29.599 +23 38 49.73 L F51
2015-01-17 10:29:26 C 09 16 28.880 +23 38 53.92 L F51
2015-01-17 14:04:33 C 09 16 20.099 +23 39 43.80 L F51
2015-01-17 14:22:20 C 09 16 19.374 +23 39 47.71 L F51
2015-01-17 14:40:11 C 09 16 18.657 +23 39 51.92 L F51
2015-01-20 09:01:59 C 09 13 36.751 +23 55 15.18 L F51
2015-01-20 09:19:19 C 09 13 36.006 +23 55 19.24 L F51
2015-01-20 09:54:19 C 09 13 34.522 +23 55 27.48 L F51
2015-01-22 09:32:09 C 09 11 33.852 +24 06 23.93 L F51
2015-01-22 09:49:39 C 09 11 33.064 +24 06 28.00 L F51
2015-01-22 10:07:10 C 09 11 32.306 +24 06 31.98 L F51
2015-01-22 10:24:43 C 09 11 31.539 +24 06 36.13 L F51
2016-05-13 09:58:20 C 19 33 45.54 -25 14 27.7 R G45
2016-05-13 10:05:21 C 19 33 46.33 -25 14 29.1 R G45
2016-05-13 10:12:15 C 19 33 47.15 -25 14 30.7 R G45
2016-05-13 10:19:23 C 19 33 47.94 -25 14 31.7 R G45
2016-05-13 10:26:16 C 19 33 48.74 -25 14 33.3 R G45
2016-05-13 10:32:57 C 19 33 49.51 -25 14 34.8 R G45
2016-05-31 03:58:29 C 20 25 22.89 -26 43 04.8 o Z22
2016-05-31 04:08:55 C 20 25 24.14 -26 43 07.8 o Z22
2016-05-31 04:19:33 C 20 25 25.35 -26 43 09.4 o Z22
2016-06-12 07:40:33 C 21 01 08.62 -27 48 25.8 q Y00
2016-06-12 07:54:18 C 21 01 10.22 -27 48 28.8 q Y00
2016-06-12 08:08:32 C 21 01 11.86 -27 48 32.0 q Y00
2016-06-13 13:18:03 C 21 04 44.311 -27 55 24.51 L F51
2016-06-13 13:34:52 C 21 04 46.234 -27 55 28.47 L F51
2016-06-13 13:51:38 C 21 04 48.150 -27 55 32.32 L F51
2016-06-13 14:08:25 C 21 04 50.068 -27 55 36.18 L F51
2016-06-20 11:37:58 C 21 24 29.41 -28 33 17.3 L T05
2016-06-20 11:57:08 C 21 24 31.61 -28 33 22.8 L T05
2016-06-20 12:15:27 C 21 24 33.46 -28 33 26.6 L T05
2016-06-20 12:33:01 C 21 24 35.39 -28 33 31.4 L T05
2016-07-04 13:49:40 C 22 00 53.693 -29 47 16.79 L F51
2016-07-04 14:01:45 C 22 00 54.769 -29 47 19.23 L F51
2016-07-04 14:13:57 C 22 00 55.857 -29 47 21.62 L F51
2016-07-04 14:26:01 C 22 00 56.932 -29 47 23.99 L F51
2016-07-16 13:38:41 C 22 25 08.819 -30 39 50.23 L F51
2016-07-16 13:54:32 C 22 25 09.810 -30 39 52.45 L F51
2016-07-18 06:53:33 C 22 27 58.27 -30 45 40.3 q Y00
2016-07-18 07:11:36 C 22 27 59.32 -30 45 42.4 q Y00
2016-07-18 07:25:41 C 22 28 00.15 -30 45 43.9 q Y00
2016-07-25 02:03:18 C 22 37 24.84 -31 05 16.4 o Z22
2016-07-25 02:13:25 C 22 37 25.27 -31 05 16.9 o Z22
2016-07-25 02:24:43 C 22 37 25.70 -31 05 17.9 o Z22
2016-08-14 01:25:46 C 22 48 55.76 -30 54 52.4 o Z22
2016-08-14 01:36:10 C 22 48 55.76 -30 54 50.7 o Z22
2016-08-16 11:03:40 C 22 48 59.88 -30 44 25.5 L T05
2016-08-16 11:30:58 C 22 48 59.63 -30 44 19.9 L T05
2016-08-16 11:56:22 C 22 48 59.39 -30 44 15.0 L T05