2021 SW3

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS

Orbital Elements

Epoch (TDB)	2025-11-21 (JD 2461000.5)
Eccentricity (e)	0.1949688928 ± 5.27e-04
Semi-major axis (a)	1.3104813302 AU ± 1.03e-03
Inclination (i)	21.66329406° ± 3.13e-02
Long. of Asc. Node (Ω)	185.15107964° ± 2.60e-03
Arg. of Perihelion (ω)	120.82315246° ± 5.32e-02
Mean Anomaly (M)	315.15516749° ± 1.21e+00
Mean Motion (n)	0.6570009824°/day ± 7.77e-04
Perihelion dist (q)	1.05497824 AU ± 1.08e-03
Aphelion dist (Q)	1.56598442 AU ± 1.41e-03
Orbital Period	1.50018997 yr ± 1.77e-03

Physical Parameters

H (abs. magnitude)	24.27
G (slope)	0.15

Orbit Solution

Source	IAA
Solution Date	2026-06-02
RMS Residual	0.272″
Uncertainty	4
Orbit Type	Amor
MOID	0.129476 AU
Observations Used	15
Oppositions	1
Arc Total	2021-2021
First Observation Used	2021-09-30
Last Observation Used	2021-10-09

Observations (16)

Date	Type	RA	Dec	Mag	Band	Observatory
2021-09-30 08:00:18	C	23 26 54.681	-03 06 41.63	–	U	F52
2021-09-30 08:15:57	C	23 26 56.332	-03 08 11.54	–	U	F52
2021-09-30 08:31:27	C	23 26 57.973	-03 09 40.71	–	U	F52
2021-10-02 03:28:14	C	23 32 00.18	-07 03 42.5	–	V	807
2021-10-02 03:32:28	C	23 32 00.61	-07 04 04.5	–	V	807
2021-10-02 03:36:42	C	23 32 01.03	-07 04 26.5	–	V	807
2021-10-02 11:16:08	C	23 32 51.503	-07 44 39.79	–	U	F51
2021-10-02 11:28:48	C	23 32 52.781	-07 45 43.91	–	U	F51
2021-10-02 11:41:26	C	23 32 54.068	-07 46 48.33	–	U	F51
2021-10-02 20:31:19	C	23 33 56.63	-08 31 39.5	–	V	L01
2021-10-02 20:34:26	C	23 33 56.88	-08 31 54.4	–	V	L01
2021-10-02 20:37:33	C	23 33 57.19	-08 32 10.6	–	V	L01
2021-10-02 20:43:47	C	23 33 57.88	-08 32 40.6	–	V	L01
2021-10-09 07:20:49	C	23 49 39.54	-19 01 51.5	–	o	291
2021-10-09 07:31:49	C	23 49 40.45	-19 02 26.7	–	o	291
2021-10-09 07:42:53	C	23 49 41.39	-19 03 02.0	–	o	291