2021 OA1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3855608000
Semi-major axis (a)1.7051634000 AU
Inclination (i)6.63485000°
Long. of Asc. Node (Ω)131.39119000°
Arg. of Perihelion (ω)197.96259000°
Mean Anomaly (M)328.06799000°
Mean Motion (n)0.4426445100°/day
Perihelion dist (q)1.04771920 AU
Aphelion dist (Q)2.36260760 AU
Orbital Period2.22663490 yr
Physical Parameters
H (abs. magnitude)24.27
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.640″
Uncertainty7
Orbit TypeAmor
MOID0.040478 AU
Observations Used75
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-08-12
Observations (79)
Date Type RA Dec Mag Band Observatory
2021-07-28 11:37:05 C 20 57 18.723 -04 53 46.60 V F51
2021-07-29 11:24:13 C 21 09 26.29 -05 54 19.4 V T08
2021-07-29 11:29:31 C 21 09 28.93 -05 54 33.4 V T08
2021-07-29 12:03:09 C 21 09 45.30 -05 56 02.9 V T08
2021-07-29 12:14:26 C 21 09 50.82 -05 56 31.5 V T08
2021-07-29 20:24:23 C 21 14 20.94 -06 19 17.3 V L18
2021-07-29 20:33:12 C 21 14 25.45 -06 19 41.4 V L18
2021-07-29 20:42:00 C 21 14 30.01 -06 20 05.2 V L18
2021-07-29 20:52:45 C 21 14 36.81 -06 20 36.3 V 033
2021-07-29 20:53:13 C 21 14 37.06 -06 20 37.7 V 033
2021-07-29 20:53:40 C 21 14 37.29 -06 20 39.0 V 033
2021-07-29 20:54:51 C 21 14 38.26 -06 20 33.1 V L01
2021-07-29 20:56:43 C 21 14 39.22 -06 20 37.7 V L01
2021-07-29 20:58:46 C 21 14 40.30 -06 20 43.7 V L01
2021-07-29 21:00:51 C 21 14 41.37 -06 20 49.5 V L01
2021-07-29 21:02:47 C 21 14 42.38 -06 20 54.9 V L01
2021-07-29 21:03:10 C 21 14 42.59 -06 20 55.8 V L01
2021-07-29 21:37:31 V 21 15 00.95 -06 22 28.0 V 247
2021-07-29 21:37:31 v 1 009.1183 +44.7717 247
2021-07-29 21:44:53 V 21 15 04.74 -06 22 48.8 V 247
2021-07-29 21:44:53 v 1 009.1183 +44.7717 247
2021-07-29 21:52:34 V 21 15 08.80 -06 23 09.9 V 247
2021-07-29 21:52:34 v 1 009.1183 +44.7717 247
2021-07-29 22:03:17 C 21 15 14.29 -06 23 40.5 V 203
2021-07-29 22:12:15 C 21 15 18.88 -06 24 05.2 V 587
2021-07-29 22:16:35 C 21 15 21.10 -06 24 17.5 V 587
2021-07-29 22:20:02 C 21 15 22.93 -06 24 26.3 V 587
2021-07-29 22:24:29 C 21 15 25.26 -06 24 38.4 V 203
2021-07-29 22:24:49 C 21 15 24.60 -06 24 47.7 V G34
2021-07-29 22:44:27 C 21 15 34.77 -06 25 41.6 V G34
2021-07-29 22:45:07 C 21 15 35.77 -06 25 31.9 V 104
2021-07-29 22:50:03 C 21 15 37.72 -06 25 56.1 V G34
2021-07-29 22:50:40 C 21 15 38.63 -06 25 47.1 V 104
2021-07-29 22:53:48 C 21 15 40.42 -06 25 57.9 V 203
2021-07-29 23:00:23 C 21 15 43.64 -06 26 13.6 V 104
2021-07-30 01:58:57 C 21 17 24.23 -06 31 38.5 X Y00
2021-07-30 02:00:27 C 21 17 25.00 -06 31 42.4 X Y00
2021-07-30 02:01:57 C 21 17 25.76 -06 31 46.1 X Y00
2021-07-30 02:12:09 C 21 17 23.38 -06 35 05.5 V 033
2021-07-30 02:12:34 C 21 17 23.60 -06 35 06.7 V 033
2021-07-30 02:12:59 C 21 17 23.82 -06 35 07.9 V 033
2021-07-30 05:25:38 C 21 19 18.09 -06 43 36.4 q H36
2021-07-30 05:33:07 C 21 19 22.07 -06 43 56.3 q H36
2021-07-30 05:38:45 C 21 19 25.04 -06 44 12.4 q H36
2021-08-03 01:31:35 C 22 17 12.95 -11 12 20.3 V W88
2021-08-03 03:06:52 C 22 18 16.93 -11 17 29.0 u 807
2021-08-03 03:11:28 C 22 18 19.97 -11 17 42.9 u 807
2021-08-03 03:16:00 C 22 18 22.95 -11 17 57.1 u 807
2021-08-03 08:10:53 C 22 21 35.74 -11 32 48.9 V W88
2021-08-03 08:15:19 C 22 21 38.69 -11 33 01.9 V W88