2021 CB9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3476360325 ± 6.08e-06
Semi-major axis (a)1.6277079626 AU ± 1.67e-05
Inclination (i)3.40709993° ± 4.94e-05
Long. of Asc. Node (Ω)165.22704628° ± 2.06e-05
Arg. of Perihelion (ω)28.24290946° ± 6.53e-05
Mean Anomaly (M)83.34111589° ± 1.24e-02
Mean Motion (n)0.4746216493°/day ± 7.28e-06
Perihelion dist (q)1.06185802 AU ± 1.47e-05
Aphelion dist (Q)2.19355790 AU ± 2.45e-05
Orbital Period2.07665682 yr ± 3.19e-05
Physical Parameters
H (abs. magnitude)24.88
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.223″
Uncertainty2
Orbit TypeAmor
MOID0.068171 AU
Observations Used87
Oppositions1
Arc Total2021-2021
First Observation Used2021-02-13
Last Observation Used2021-05-13
Observations (87)
Date Type RA Dec Mag Band Observatory
2021-03-31 07:42:55 C 12 55 43.45 +18 52 03.7 V I52
2021-03-31 07:45:51 C 12 55 44.37 +18 52 05.3 V I52
2021-03-31 07:47:10 C 12 55 44.77 +18 52 05.6 V I52
2021-03-31 07:51:02 C 12 55 46.02 +18 52 07.4 V I52
2021-04-04 10:50:04 C 13 30 42.24 +19 20 51.1 V I52
2021-04-04 10:52:29 C 13 30 43.02 +19 20 51.0 V I52
2021-04-04 10:54:55 C 13 30 43.82 +19 20 50.9 V I52
2021-04-04 18:12:19 C 13 33 19.34 +19 21 26.7 q D29
2021-04-04 18:32:41 C 13 33 25.82 +19 21 26.0 q D29
2021-04-04 18:53:03 C 13 33 32.34 +19 21 25.7 q D29
2021-04-05 08:23:36 C 13 38 17.76 +19 21 47.3 V G96
2021-04-05 08:31:05 C 13 38 20.10 +19 21 46.9 V G96
2021-04-05 08:39:32 C 13 38 22.76 +19 21 46.9 V G96
2021-04-05 08:47:01 C 13 38 25.11 +19 21 46.5 V G96
2021-04-06 07:43:30 C 13 46 20.94 +19 20 26.5 V I52
2021-04-06 07:44:36 C 13 46 21.26 +19 20 26.5 V I52
2021-04-06 07:45:42 C 13 46 21.60 +19 20 26.4 V I52
2021-04-19 09:06:52 C 15 14 11.99 +16 13 00.2 V G96
2021-04-19 09:18:52 C 15 14 14.24 +16 12 48.7 V G96
2021-04-19 09:27:17 C 15 14 15.77 +16 12 40.7 V G96
2021-04-19 09:35:36 C 15 14 17.28 +16 12 32.6 V G96
2021-04-23 00:45:12 C 15 30 56.77 +14 48 05.9 V 033
2021-04-23 00:50:02 C 15 30 57.48 +14 48 01.2 V 033
2021-04-23 00:54:51 C 15 30 58.24 +14 47 56.3 V 033
2021-04-23 00:59:44 C 15 30 58.99 +14 47 51.2 V 033
2021-04-26 01:45:44 C 15 42 30.75 +13 34 30.0 V 033
2021-04-26 01:47:34 C 15 42 30.97 +13 34 28.0 V 033
2021-04-26 01:49:22 C 15 42 31.20 +13 34 26.2 V 033
2021-05-08 06:12:36 C 16 12 08.22 +08 37 03.4 o 291
2021-05-08 06:25:30 C 16 12 08.90 +08 36 51.3 o 291
2021-05-09 10:51:59 C 16 13 50.49 +08 08 16.6 o 691
2021-05-09 11:03:08 C 16 13 51.02 +08 08 05.7 o 691
2021-05-09 11:14:18 C 16 13 51.54 +08 07 54.3 o 691
2021-05-13 11:45:54 C 16 18 52.270 +06 31 54.42 U F51
2021-05-13 12:03:33 C 16 18 52.728 +06 31 36.63 U F51
2021-05-13 12:21:07 C 16 18 53.208 +06 31 19.08 U F51
2021-05-13 12:38:37 C 16 18 53.689 +06 31 01.75 U F51