2021 SB2

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS

Orbital Elements

Epoch (TDB)	2025-11-21 (JD 2461000.5)
Eccentricity (e)	0.2152939874 ± 3.47e-04
Semi-major axis (a)	1.0444010653 AU ± 1.63e-04
Inclination (i)	5.82009879° ± 9.73e-03
Long. of Asc. Node (Ω)	186.26803113° ± 8.23e-04
Arg. of Perihelion (ω)	78.35145994° ± 1.86e-02
Mean Anomaly (M)	34.92107184° ± 3.79e-01
Mean Motion (n)	0.9234456013°/day ± 2.17e-04
Perihelion dist (q)	0.81954780 AU ± 3.84e-04
Aphelion dist (Q)	1.26925434 AU ± 4.13e-04
Orbital Period	1.06733551 yr ± 2.50e-04

Physical Parameters

H (abs. magnitude)	26.60
G (slope)	0.15

Orbit Solution

Source	IAA
Solution Date	2026-06-02
RMS Residual	0.494″
Uncertainty	3
Orbit Type	Apollo
MOID	0.014687 AU
Observations Used	16
Oppositions	1
Arc Total	2021-2021
First Observation Used	2021-09-28
Last Observation Used	2021-09-30

Observations (16)

Date	Type	RA	Dec	Mag	Band	Observatory
2021-09-28 09:11:48	C	01 28 02.329	+10 23 05.07	–	U	F52
2021-09-28 09:28:14	C	01 27 57.054	+10 20 50.37	–	U	F52
2021-09-28 09:44:44	C	01 27 51.771	+10 18 36.10	–	U	F52
2021-09-28 10:01:14	C	01 27 46.444	+10 16 21.27	–	U	F52
2021-09-28 13:00:47	C	01 26 48.762	+09 52 01.47	–	V	F51
2021-09-28 13:01:57	C	01 26 48.405	+09 51 51.98	–	V	F51
2021-09-29 05:37:47	C	01 22 53.46	+07 44 19.6	–	u	H21
2021-09-29 05:41:49	C	01 22 52.33	+07 43 50.9	–	u	H21
2021-09-29 05:46:15	C	01 22 51.12	+07 43 19.2	–	u	H21
2021-09-29 10:04:53	C	01 21 53.487	+07 13 40.70	–	U	F51
2021-09-29 10:13:52	C	01 21 50.994	+07 12 38.12	–	U	F51
2021-09-29 18:21:26	C	01 20 04.64	+06 16 32.3	–	V	N51
2021-09-29 18:30:41	C	01 20 02.25	+06 15 31.3	–	V	N51
2021-09-30 00:25:18	C	01 18 44.56	+05 36 26.5	–	V	104
2021-09-30 00:39:44	C	01 18 41.05	+05 34 54.5	–	V	104
2021-09-30 00:54:54	C	01 18 37.41	+05 33 18.3	–	V	104