2021 SJ5

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS

Orbital Elements

Epoch (TDB)	2025-11-21 (JD 2461000.5)
Eccentricity (e)	0.4766378418 ± 2.92e-05
Semi-major axis (a)	2.3365267125 AU ± 1.55e-04
Inclination (i)	8.10821543° ± 3.89e-04
Long. of Asc. Node (Ω)	42.89291812° ± 4.05e-05
Arg. of Perihelion (ω)	340.26625842° ± 4.14e-04
Mean Anomaly (M)	53.39342036° ± 4.10e-02
Mean Motion (n)	0.2759663633°/day ± 2.74e-05
Perihelion dist (q)	1.22284966 AU ± 1.06e-04
Aphelion dist (Q)	3.45020376 AU ± 2.39e-04
Orbital Period	3.57154499 yr ± 3.55e-04

Physical Parameters

H (abs. magnitude)	23.95
G (slope)	0.15

Orbit Solution

Source	IAA
Solution Date	2026-06-02
RMS Residual	0.118″
Uncertainty	2
Orbit Type	Amor
MOID	0.230318 AU
Observations Used	16
Oppositions	1
Arc Total	2021-2021
First Observation Used	2021-09-26
Last Observation Used	2021-10-31

Observations (16)

Date	Type	RA	Dec	Mag	Band	Observatory
2021-09-26 13:33:44	C	02 06 52.908	-11 07 13.91	–	V	F52
2021-09-26 13:49:18	C	02 06 53.619	-11 06 56.40	–	V	F52
2021-09-26 14:04:52	C	02 06 54.302	-11 06 38.89	–	V	F52
2021-09-30 09:57:33	C	02 11 35.284	-09 18 15.22	–	U	F51
2021-09-30 10:17:05	C	02 11 36.055	-09 17 50.96	–	U	F51
2021-09-30 10:36:36	C	02 11 36.810	-09 17 26.80	–	U	F51
2021-10-04 11:05:26	C	02 15 51.905	-07 09 35.33	–	U	F52
2021-10-04 11:23:00	C	02 15 52.445	-07 09 10.90	–	U	F52
2021-10-04 11:58:00	C	02 15 53.532	-07 08 21.89	–	U	F52
2021-10-04 13:42:56	C	02 15 56.826	-07 05 54.56	–	U	F51
2021-10-04 13:51:27	C	02 15 57.095	-07 05 42.50	–	U	F51
2021-10-04 13:58:53	C	02 15 57.340	-07 05 32.23	–	U	F51
2021-10-31 07:54:31	C	02 30 17.868	+11 04 26.26	–	U	F51
2021-10-31 08:10:19	C	02 30 17.893	+11 04 53.91	–	U	F51
2021-10-31 08:26:07	C	02 30 17.910	+11 05 21.25	–	U	F51
2021-10-31 08:41:57	C	02 30 17.910	+11 05 48.90	–	U	F51