2021 CB1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS

Orbital Elements

Epoch (TDB)	2025-11-21 (JD 2461000.5)
Eccentricity (e)	0.6166630240 ± 4.08e-04
Semi-major axis (a)	2.3205712663 AU ± 2.33e-03
Inclination (i)	3.87272648° ± 1.97e-03
Long. of Asc. Node (Ω)	135.20527196° ± 3.60e-05
Arg. of Perihelion (ω)	314.26922115° ± 1.48e-03
Mean Anomaly (M)	137.63833136° ± 7.54e-01
Mean Motion (n)	0.2788174241°/day ± 4.20e-04
Perihelion dist (q)	0.88956077 AU ± 1.30e-03
Aphelion dist (Q)	3.75158176 AU ± 3.88e-03
Orbital Period	3.53502399 yr ± 5.32e-03

Physical Parameters

H (abs. magnitude)	29.20
G (slope)	0.15

Orbit Solution

Source	IAA
Solution Date	2026-06-02
RMS Residual	0.337″
Uncertainty	3
Orbit Type	Apollo
MOID	0.004372 AU
Observations Used	15
Oppositions	1
Arc Total	2021-2021
First Observation Used	2021-02-05
Last Observation Used	2021-02-10

Observations (15)

Date	Type	RA	Dec	Mag	Band	Observatory
2021-02-05 06:53:55	C	09 24 48.39	+18 24 19.3	–	V	G96
2021-02-05 07:02:00	C	09 24 56.34	+18 24 25.8	–	V	G96
2021-02-05 07:10:04	C	09 25 04.24	+18 24 32.2	–	V	G96
2021-02-05 07:18:08	C	09 25 12.14	+18 24 38.8	–	V	G96
2021-02-05 11:17:56	C	09 28 59.91	+18 26 50.4	–	V	G96
2021-02-05 11:20:16	C	09 29 02.13	+18 26 51.3	–	V	G96
2021-02-05 11:22:36	C	09 29 04.30	+18 26 52.1	–	V	G96
2021-02-05 11:24:57	C	09 29 06.50	+18 26 52.2	–	V	G96
2021-02-06 05:32:20	C	09 44 29.55	+18 38 51.0	–	V	807
2021-02-06 05:40:34	C	09 44 34.80	+18 38 51.9	–	V	807
2021-02-06 05:48:49	C	09 44 40.12	+18 38 53.3	–	V	807
2021-02-06 07:28:33	C	09 45 54.05	+18 34 57.0	–	V	G96
2021-02-06 07:30:53	C	09 45 55.52	+18 34 57.0	–	V	G96
2021-02-06 07:33:13	C	09 45 56.97	+18 34 57.3	–	V	G96
2021-02-10 14:11:20	C	10 23 48.324	+18 31 09.25	–	V	T12