52768 (1998 OR2)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5757189890 ± 5.34e-10
Semi-major axis (a)2.3793400346 AU ± 6.79e-10
Inclination (i)5.87938456° ± 3.15e-07
Long. of Asc. Node (Ω)26.93086310° ± 7.35e-07
Arg. of Perihelion (ω)174.57236061° ± 1.01e-06
Mean Anomaly (M)188.66062109° ± 2.78e-07
Mean Motion (n)0.2685514540°/day ± 1.15e-10
Perihelion dist (q)1.00950880 AU ± 1.30e-09
Aphelion dist (Q)3.74917127 AU ± 1.66e-09
Orbital Period3.67015806 yr ± 1.57e-09
Physical Parameters
H (abs. magnitude)16.02
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.161″
Uncertainty0
Orbit TypeApollo
MOID0.006993 AU
Observations Used5779
Radar Obs Used8
Gaia Obs Used66
Oppositions21
Arc Total1987-2025
First Observation Used1987-06-30
Last Observation Used2025-11-11
Observations (6539)
Date Type RA Dec Mag Band Observatory
1987-06-30 18:14:36 22 22 09.41 -21 36 58.2 260
1987-06-30 19:54:36 22 22 06.38 -21 37 25.4 260
1996-10-05 09:24:07 C 02 45 24.44 +17 10 21.0 a 691
1996-10-05 10:10:14 C 02 45 22.93 +17 10 16.2 a 691
1996-10-05 10:56:09 C 02 45 21.50 +17 10 11.6 a 691
1998-07-24 10:42:42 C 21 33 56.00 -26 56 37.1 c 566
1998-07-24 11:12:54 C 21 33 53.93 -26 56 45.6 c 566
1998-07-24 11:43:14 C 21 33 51.77 -26 56 53.0 c 566
1998-07-25 08:32:59 C 21 32 26.67 -27 02 04.0 673
1998-07-25 08:39:14 C 21 32 26.22 -27 02 05.5 673
1998-07-26 09:02:24 C 21 30 46.10 -27 07 55.6 673
1998-07-26 09:07:31 C 21 30 45.83 -27 07 56.6 673
1998-07-26 22:35:15 C 21 29 50.58 -27 11 04.4 z 104
1998-07-26 22:41:09 C 21 29 50.15 -27 11 06.2 z 104
1998-07-26 22:46:30 C 21 29 49.76 -27 11 08.1 z 104
1998-07-26 23:47:32 C 21 29 45.44 -27 11 21.3 046
1998-07-26 23:49:20 C 21 29 45.29 -27 11 22.1 046
1998-07-26 23:50:48 C 21 29 45.14 -27 11 22.1 046
1998-07-26 23:54:18 C 21 29 44.94 -27 11 23.5 046
1998-07-26 23:59:46 C 21 29 44.57 -27 11 24.1 046
1998-07-28 23:08:09 C 21 26 30.50 -27 21 41.5 z 587
1998-07-28 23:17:39 C 21 26 29.78 -27 21 44.2 z 587
1998-07-28 23:23:54 C 21 26 29.30 -27 21 45.9 z 587
1998-08-04 06:50:44 C 21 16 13.062 -27 48 07.30 l I02
1998-08-11 10:07:58 C 21 05 22.29 -28 05 20.6 422
1998-08-11 10:11:03 C 21 05 22.06 -28 05 20.9 422
1998-08-11 10:13:12 C 21 05 21.96 -28 05 21.0 422
1998-08-11 13:45:48 C 21 05 08.91 -28 05 43.0 z 402
1998-08-11 13:47:19 C 21 05 08.81 -28 05 42.8 z 402
1998-08-11 13:48:49 C 21 05 08.80 -28 05 43.0 z 402
1998-08-11 13:50:19 C 21 05 08.66 -28 05 42.2 z 402
1998-08-14 12:59:03 C 21 01 01.42 -28 08 44.7 422
1998-08-14 13:00:36 C 21 01 01.33 -28 08 45.0 422
1998-08-14 13:01:48 C 21 01 01.25 -28 08 45.0 422
1998-08-15 15:13:00 C 20 59 34.16 -28 09 29.0 360
1998-08-15 15:18:44 C 20 59 33.82 -28 09 28.7 360
1998-08-15 15:24:59 C 20 59 33.47 -28 09 29.0 360
1998-08-16 22:02:02 C 20 57 54.91 -28 09 51.2 046
1998-08-16 22:04:43 C 20 57 54.83 -28 09 49.7 046
1998-08-16 22:07:18 C 20 57 54.66 -28 09 50.5 046
1998-08-16 22:09:50 C 20 57 54.53 -28 09 49.9 046
1998-08-16 22:12:25 C 20 57 54.41 -28 09 49.2 046
1998-09-20 03:20:01 C 20 36 50.21 -26 34 48.5 711
1998-09-21 03:07:50 C 20 36 51.80 -26 30 07.9 711
1998-09-21 03:26:33 C 20 36 51.72 -26 30 03.7 711
1999-10-12 05:42:26 C 00 48 10.38 +03 06 47.9 b 691
1999-10-12 06:12:24 C 00 48 09.24 +03 06 42.3 b 691
1999-10-12 06:42:46 C 00 48 08.02 +03 06 36.1 b 691
2000-11-26 06:09:03 C 03 06 17.80 +21 34 02.9 b 691
2000-11-26 06:42:49 C 03 06 16.17 +21 33 57.5 b 691
Radar Observations (8)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2020-04-16 23:39:00 74169888.28 0.55 us 2380 -1 -1
2020-04-17 00:39:00 74006133.3 0.55 us 2380 -1 -1
2020-04-17 23:49:00 70213370.86 0.54 us 2380 -1 -1
2020-04-18 23:37:00 66419421.12 0.54 us 2380 -1 -1
2020-04-19 23:42:00 62708392.59 0.54 us 2380 -1 -1
2020-04-22 00:23:00 55726484.71 0.53 us 2380 -1 -1
2020-04-23 00:30:00 52603664 0.53 us 2380 -1 -1
2020-04-23 23:47:00 49859572.3 0.53 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)