38239 (1999 OR3)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5756843401 ± 3.96e-08
Semi-major axis (a)2.0355478099 AU ± 1.55e-08
Inclination (i)9.40329136° ± 7.12e-06
Long. of Asc. Node (Ω)199.75456903° ± 7.53e-05
Arg. of Perihelion (ω)28.56687090° ± 7.03e-05
Mean Anomaly (M)44.77971878° ± 3.31e-05
Mean Motion (n)0.3393831804°/day ± 3.87e-09
Perihelion dist (q)0.86371481 AU ± 8.09e-08
Aphelion dist (Q)3.20738081 AU ± 8.42e-08
Orbital Period2.90416951 yr ± 3.31e-08
Physical Parameters
H (abs. magnitude)18.33
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.506″
Uncertainty0
Orbit TypeApollo
MOID0.054125 AU
Observations Used194
Oppositions17
Arc Total1999-2025
First Observation Used1999-07-27
Last Observation Used2025-02-19
Observations (205)
Date Type RA Dec Mag Band Observatory
1999-08-20 05:51:31 C 20 18 48.44 +08 00 25.5 i 670
1999-08-20 06:02:41 C 20 18 48.61 +08 00 08.1 i 670
1999-08-20 19:50:57 C 20 19 03.85 +07 38 53.7 d 046
1999-08-20 19:53:31 C 20 19 03.89 +07 38 49.3 d 046
1999-08-20 19:55:24 C 20 19 03.87 +07 38 45.6 d 046
1999-08-20 19:57:06 C 20 19 03.91 +07 38 43.7 d 046
1999-08-20 19:59:11 C 20 19 03.93 +07 38 41.3 d 046
1999-08-21 13:12:12 C 20 19 22.68 +07 13 11.3 413
1999-08-21 13:17:55 C 20 19 22.77 +07 13 03.1 413
1999-08-22 20:23:36 C 20 19 59.44 +06 27 18.1 d 046
1999-08-22 20:25:15 C 20 19 59.50 +06 27 15.2 d 046
1999-08-29 13:52:43 C 20 23 37.97 +02 58 50.2 z 402
1999-08-29 13:56:21 C 20 23 38.01 +02 58 46.7 z 402
1999-08-29 13:58:09 C 20 23 38.09 +02 58 43.2 z 402
1999-09-11 19:53:44 C 20 33 13.07 -02 01 49.0 d 046
1999-09-11 19:55:19 C 20 33 13.08 -02 01 49.3 d 046
1999-09-11 19:57:00 C 20 33 13.16 -02 01 50.8 d 046
1999-09-11 19:58:35 C 20 33 13.28 -02 01 52.1 d 046
1999-09-12 18:52:23 C 20 34 01.83 -02 18 50.8 557
1999-09-12 18:59:04 C 20 34 02.08 -02 18 56.1 557
1999-09-12 19:02:26 C 20 34 02.15 -02 18 57.7 557
1999-09-12 19:09:08 C 20 34 02.41 -02 19 02.9 557
1999-09-12 19:12:29 C 20 34 02.50 -02 19 06.2 557
1999-10-05 13:10:04 C 20 57 11.05 -06 46 20.7 413
1999-10-05 13:13:48 C 20 57 11.22 -06 46 21.8 413
1999-10-05 13:19:57 C 20 57 11.50 -06 46 23.4 413
2001-11-12 11:30:40 C 08 59 36.79 +05 09 16.8 d 291
2001-11-12 11:39:39 C 08 59 37.41 +05 09 11.5 d 291
2001-11-12 11:48:52 C 08 59 37.80 +05 09 10.0 d 291
2001-11-14 11:31:57 C 09 02 20.04 +04 45 22.3 d 291
2001-11-14 11:37:45 C 09 02 20.41 +04 45 19.5 d 291
2001-11-14 11:45:26 C 09 02 20.86 +04 45 16.1 d 291
2001-12-20 06:56:21 C 09 46 07.24 -03 42 50.3 d 829
2001-12-20 07:32:21 C 09 46 08.77 -03 43 15.2 d 829
2001-12-21 06:52:01 C 09 47 10.79 -03 59 28.7 d 829
2001-12-21 07:36:02 C 09 47 12.67 -03 59 59.8 d 829
2002-01-12 09:13:38 C 10 08 07.82 -10 57 20.9 c 699
2002-01-12 09:36:18 C 10 08 08.64 -10 57 39.9 c 699
2002-01-12 09:59:00 C 10 08 09.22 -10 58 00.6 c 699
2002-01-12 10:21:44 C 10 08 09.99 -10 58 21.2 c 699
2002-02-02 13:57:57 C 10 24 45.84 -20 01 05.4 c 322
2002-02-02 14:30:46 C 10 24 47.31 -20 01 50.3 c 322
2002-02-02 14:56:32 C 10 24 47.86 -20 02 23.3 c 322
2002-02-05 01:28:58 C 10 26 47.44 -21 22 57.4 c 118
2002-02-05 01:37:54 C 10 26 47.76 -21 23 09.1 c 118
2002-02-18 06:29:56 C 10 41 45.00 -30 55 08.0 c 452
2002-02-18 06:34:51 C 10 41 45.28 -30 55 20.0 c 452
2002-02-18 06:39:44 C 10 41 45.48 -30 55 31.3 c 452
2002-03-07 05:32:57 C 12 21 16.66 -59 45 39.8 c 807
2002-03-08 07:09:04 C 12 45 23.26 -62 40 42.7 c 807