IAA RAS IAA Minor Planet Database

2021 CS9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1803551000
Semi-major axis (a)0.9826247000 AU
Inclination (i)15.00850000°
Long. of Asc. Node (Ω)139.26086000°
Arg. of Perihelion (ω)258.94864000°
Mean Anomaly (M)49.96416000°
Mean Motion (n)1.0118649400°/day
Perihelion dist (q)0.80540330 AU
Aphelion dist (Q)1.15984610 AU
Orbital Period0.97405060 yr
Physical Parameters
H (abs. magnitude)24.29
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.760″
Uncertainty6
Orbit TypeAten
MOID0.001540 AU
Observations Used42
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-03-07
Observations (42)
Date Type RA Dec Mag Band Observatory
2021-02-07 11:58:32 C 15 03 12.78 -06 21 43.0 – V 703
2021-02-07 12:06:13 C 15 03 10.79 -06 19 28.9 – V 703
2021-02-07 12:21:31 C 15 03 06.84 -06 15 05.2 – V 703
2021-02-15 09:23:15 C 14 24 09.39 +37 13 42.9 – V G96
2021-02-15 09:30:05 C 14 24 07.79 +37 14 45.3 – V G96
2021-02-15 09:36:53 C 14 24 06.17 +37 15 47.4 – V G96
2021-02-15 09:43:41 C 14 24 04.54 +37 16 49.6 – V G96
2021-02-15 11:42:10 C 14 23 35.74 +37 34 32.6 – V I52
2021-02-15 11:42:46 C 14 23 35.57 +37 34 37.9 – V I52
2021-02-15 11:43:23 C 14 23 35.42 +37 34 43.2 – V I52
2021-02-15 11:43:59 C 14 23 35.29 +37 34 48.7 – V I52
2021-02-15 23:44:03 C 14 21 19.63 +39 16 03.0 – V 203
2021-02-16 00:37:40 C 14 21 07.92 +39 23 38.7 – V 203
2021-02-16 03:13:33 C 14 20 31.11 +39 45 17.0 – V L01
2021-02-16 03:16:03 C 14 20 30.53 +39 45 37.2 – V L01
2021-02-16 03:18:32 C 14 20 29.94 +39 45 57.7 – V L01
2021-02-16 03:21:02 C 14 20 29.34 +39 46 17.7 – V L01
2021-02-16 03:25:05 C 14 20 28.37 +39 46 51.2 – V L01
2021-02-16 09:44:36 C 14 19 18.60 +40 37 36.8 – V I52
2021-02-16 09:47:37 C 14 19 17.83 +40 38 00.8 – V I52
2021-02-16 10:26:38 C 14 19 05.68 +40 43 01.8 – V H36
2021-02-16 10:30:57 C 14 19 04.64 +40 43 36.1 – V H36
2021-02-16 10:35:43 C 14 19 03.50 +40 44 13.3 – V H36
2021-02-17 11:08:05 C 14 14 14.00 +43 44 04.3 – V I52
2021-02-17 11:11:06 C 14 14 13.25 +43 44 24.4 – V I52
2021-02-17 11:14:09 C 14 14 12.53 +43 44 45.9 – V I52
2021-02-17 11:15:34 C 14 14 12.19 +43 44 56.4 – V I52
2021-02-22 12:16:48 C 13 50 30.88 +54 01 19.8 – V I52
2021-02-22 12:19:57 C 13 50 30.15 +54 01 30.9 – V I52
2021-02-22 12:23:05 C 13 50 29.42 +54 01 42.0 – V I52
2021-02-22 12:24:54 C 13 50 29.01 +54 01 48.7 – V I52
2021-02-23 08:34:48 C 13 46 44.53 +55 12 40.3 – V I52
2021-02-23 08:39:58 C 13 46 43.38 +55 12 58.4 – V I52
2021-02-23 08:42:24 C 13 46 42.78 +55 13 06.6 – V I52
2021-02-23 08:44:49 C 13 46 42.27 +55 13 15.1 – V I52
2021-03-05 06:45:45 C 13 02 23.67 +63 09 00.4 – u H21
2021-03-05 07:03:57 C 13 02 19.96 +63 09 20.4 – u H21
2021-03-06 06:30:42 C 12 58 14.38 +63 32 25.9 – u H21
2021-03-06 06:46:21 C 12 58 11.22 +63 32 41.3 – u H21
2021-03-07 07:35:21 C 12 53 53.10 +63 54 02.3 – u H21
2021-03-07 07:45:57 C 12 53 50.99 +63 54 10.6 – u H21
2021-03-07 07:49:26 C 12 53 50.35 +63 54 13.7 – u H21