2021 GR18

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3903058000
Semi-major axis (a)1.6077044000 AU
Inclination (i)12.22262000°
Long. of Asc. Node (Ω)160.58827000°
Arg. of Perihelion (ω)110.41701000°
Mean Anomaly (M)63.01886000°
Mean Motion (n)0.4834981200°/day
Perihelion dist (q)0.98020800 AU
Aphelion dist (Q)2.23520080 AU
Orbital Period2.03849340 yr
Physical Parameters
H (abs. magnitude)22.95
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.390″
Uncertainty7
Orbit TypeApollo
MOID0.104593 AU
Observations Used26
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-05-10
Observations (26)
Date Type RA Dec Mag Band Observatory
2021-04-05 09:49:12 C 14 31 46.72 +23 25 33.2 V G96
2021-04-15 07:59:29 C 14 55 51.87 +35 13 13.3 V G96
2021-04-15 08:09:25 C 14 55 52.87 +35 13 42.9 V G96
2021-04-15 08:29:23 C 14 55 55.00 +35 14 44.5 V G96
2021-04-16 05:06:53 C 14 58 24.72 +36 18 40.0 u H21
2021-04-16 05:19:12 C 14 58 26.14 +36 19 18.9 u H21
2021-04-16 05:23:24 C 14 58 26.60 +36 19 32.1 u H21
2021-04-16 06:21:04 C 14 58 34.02 +36 22 34.6 V G96
2021-04-17 08:20:06 C 15 01 47.30 +37 43 27.8 V G96
2021-04-17 08:21:41 C 15 01 47.51 +37 43 32.5 V G96
2021-04-17 08:23:16 C 15 01 47.65 +37 43 37.5 V G96
2021-04-22 10:19:25 C 15 19 00.81 +44 00 38.7 V V06
2021-04-22 10:34:47 C 15 19 03.09 +44 01 24.7 V V06
2021-05-06 09:03:52 C 16 33 08.29 +59 13 15.3 V V06
2021-05-06 09:12:50 C 16 33 10.81 +59 13 35.5 V V06
2021-05-06 09:21:47 C 16 33 13.37 +59 13 55.6 V V06
2021-05-07 09:50:47 C 16 40 49.96 +60 07 48.9 V V06
2021-05-07 09:57:12 C 16 40 51.87 +60 08 02.7 V V06
2021-05-07 10:03:35 C 16 40 53.77 +60 08 16.1 V V06
2021-05-07 10:09:59 C 16 40 55.79 +60 08 29.8 V V06
2021-05-08 08:44:58 C 16 48 17.41 +60 55 59.3 u H21
2021-05-08 08:51:56 C 16 48 19.59 +60 56 13.4 u H21
2021-05-08 08:56:07 C 16 48 20.96 +60 56 22.0 u H21
2021-05-10 07:43:28 C 17 04 40.84 +62 28 03.0 u H21
2021-05-10 07:46:48 C 17 04 42.02 +62 28 09.3 u H21
2021-05-10 08:03:40 C 17 04 47.72 +62 28 40.4 u H21