21P

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2026-03-24 (JD 2461123.5)
Eccentricity (e)0.7111070000
Semi-major axis (a)3.4907387856 AU
Inclination (i)32.05900000°
Long. of Asc. Node (Ω)195.29460000°
Arg. of Perihelion (ω)172.93950000°
Mean Anomaly (M)0.00000000°
Mean Motion (n)—°/day
Perihelion dist (q)1.00845000 AU
Aphelion dist (Q)5.97302757 AU
Orbital Period6.52192841 yr
Physical Parameters
H (abs. magnitude)9.00
G (slope)6.00
Orbit Solution
SourceMPC
Solution Date
RMS Residual—″
Uncertainty
Orbit TypeP
MOID0.010867 AU
Observations Used
Oppositions
Arc Total
First Observation Used
Last Observation Used
Observations (7431)
Date Type RA Dec Mag Band Observatory
2018-06-12 03:12:18 C 20 48 33.69 +39 21 16.8 q I17
2018-06-12 03:14:30 C 20 48 33.92 +39 21 20.2 q I17
2018-06-12 03:23:53 C 20 48 34.65 +39 21 33.7 q I17
2018-06-12 03:26:05 C 20 48 34.81 +39 21 36.6 q I17
2018-06-12 03:28:17 C 20 48 34.99 +39 21 40.0 q I17
2018-06-12 03:30:29 C 20 48 35.18 +39 21 43.5 q I17
2018-06-12 03:32:43 C 20 48 35.29 +39 21 46.2 q I17
2018-06-12 17:53:08 C 20 49 39.94 +39 41 57.3 q Q11
2018-06-12 18:17:48 C 20 49 41.73 +39 42 31.8 q Q11
2018-06-12 18:29:04 C 20 49 42.55 +39 42 47.6 q Q11
2018-06-13 00:24:40 C 20 50 09.96 +39 51 03.7 V Z80
2018-06-13 00:26:45 C 20 50 10.10 +39 51 06.0 V Z80
2018-06-13 00:28:51 C 20 50 10.27 +39 51 09.3 V Z80
2018-06-13 00:30:56 C 20 50 10.43 +39 51 12.4 V Z80
2018-06-13 00:33:01 C 20 50 10.59 +39 51 15.3 V Z80
2018-06-13 00:35:06 C 20 50 10.74 +39 51 18.2 V Z80
2018-06-13 00:37:12 C 20 50 10.91 +39 51 21.0 V Z80
2018-06-13 00:39:17 C 20 50 11.05 +39 51 24.0 V Z80
2018-06-13 00:41:22 C 20 50 11.20 +39 51 27.0 V Z80
2018-06-13 00:43:28 C 20 50 11.35 +39 51 30.1 V Z80
2018-06-13 08:28:54 C 20 50 46.80 +40 02 25.6 q U69
2018-06-13 08:31:35 C 20 50 47.04 +40 02 29.5 q U69
2018-06-13 08:33:51 C 20 50 47.19 +40 02 32.5 q U69
2018-06-13 09:19:09 C 20 50 50.63 +40 03 38.9 15.3 q H06
2018-06-13 09:21:48 C 20 50 50.84 +40 03 42.7 15.3 q H06
2018-06-13 09:24:27 C 20 50 51.05 +40 03 46.4 15.2 q H06
2018-06-13 09:27:12 C 20 50 51.23 +40 03 50.1 15.3 q H06
2018-06-13 15:53:28 C 20 51 21.01 +40 12 52.8 u D81
2018-06-13 15:55:42 C 20 51 21.16 +40 12 56.9 u D81
2018-06-13 15:57:57 C 20 51 21.38 +40 12 59.8 u D81
2018-06-13 15:59:30 C 20 51 21.53 +40 13 02.2 m 372
2018-06-13 16:07:00 C 20 51 22.12 +40 13 13.0 m 372
2018-06-13 16:21:30 C 20 51 23.16 +40 13 33.5 m 372
2018-06-13 18:08:41 C 20 51 31.02 +40 16 04.0 m 349
2018-06-13 18:14:10 C 20 51 31.44 +40 16 12.0 m 349
2018-06-13 22:00:54 C 20 51 49.38 +40 21 26.1 q C23
2018-06-13 22:14:55 C 20 51 50.46 +40 21 46.1 q C23
2018-06-13 22:36:29 C 20 51 52.09 +40 22 17.0 q C23
2018-06-15 00:09:31 C 20 53 51.19 +40 58 22.9 Q J01
2018-06-15 00:16:00 C 20 53 51.68 +40 58 32.2 Q J01
2018-06-15 00:20:20 C 20 53 52.02 +40 58 38.2 Q J01
2018-06-15 03:06:03 C 20 54 05.13 +41 02 31.0 q I17
2018-06-15 03:09:21 C 20 54 05.39 +41 02 35.8 q I17
2018-06-15 03:11:36 C 20 54 05.57 +41 02 38.8 q I17
2018-06-15 03:13:48 C 20 54 05.74 +41 02 42.2 q I17
2018-06-15 03:16:01 C 20 54 05.93 +41 02 45.2 q I17
2018-06-15 03:18:17 C 20 54 06.09 +41 02 48.7 q I17
2018-06-15 03:20:31 C 20 54 06.24 +41 02 51.6 q I17
2018-06-15 03:22:44 C 20 54 06.42 +41 02 54.7 q I17
2018-06-15 03:24:55 C 20 54 06.58 +41 02 58.3 q I17