2021 TW3

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS

Orbital Elements

Epoch (TDB)	2025-11-21 (JD 2461000.5)
Eccentricity (e)	0.2204332000
Semi-major axis (a)	1.4278612000 AU ± 3.00e+00
Inclination (i)	27.27816000° ± 4.00e+00
Long. of Asc. Node (Ω)	3.80624000° ± 5.00e+00
Arg. of Perihelion (ω)	324.71185000° ± 6.00e+00
Mean Anomaly (M)	177.77008000°
Mean Motion (n)	0.5776637300°/day
Perihelion dist (q)	1.11311320 AU
Aphelion dist (Q)	1.74260920 AU
Orbital Period	1.70619630 yr

Physical Parameters

H (abs. magnitude)	23.88
G (slope)	0.15

Orbit Solution

Source	MPC
Solution Date	—
RMS Residual	0.680″
Uncertainty	8
Orbit Type	Amor
MOID	0.142145 AU
Observations Used	17
Oppositions	1
Arc Total	—
First Observation Used	—
Last Observation Used	2021-10-09

Observations (17)

Date	Type	RA	Dec	Mag	Band	Observatory
2021-10-04 06:42:57	C	23 16 14.704	+13 58 06.86	–	U	F52
2021-10-04 06:56:53	C	23 16 11.548	+13 59 11.12	–	U	F52
2021-10-04 07:24:11	C	23 16 05.358	+14 01 16.70	–	U	F52
2021-10-04 10:04:20	C	23 15 29.046	+14 13 26.73	–	V	F51
2021-10-04 10:05:16	C	23 15 28.841	+14 13 30.67	–	V	F51
2021-10-04 10:06:12	C	23 15 28.631	+14 13 34.87	–	V	F51
2021-10-04 10:07:08	C	23 15 28.415	+14 13 39.24	–	V	F51
2021-10-05 07:08:25	C	23 11 09.363	+15 46 16.77	–	V	F51
2021-10-05 07:24:31	C	23 11 05.889	+15 47 26.65	–	V	F51
2021-10-05 07:40:43	C	23 11 02.386	+15 48 35.90	–	V	F51
2021-10-05 07:57:04	C	23 10 58.866	+15 49 45.79	–	V	F51
2021-10-06 10:20:35	C	23 05 47.199	+17 38 06.27	–	U	F51
2021-10-06 10:37:10	C	23 05 43.860	+17 39 11.16	–	U	F51
2021-10-06 10:53:43	C	23 05 40.534	+17 40 15.75	–	U	F51
2021-10-06 11:10:13	C	23 05 37.254	+17 41 20.15	–	U	F51
2021-10-09 02:01:32	C	22 54 41.84	+21 26 37.5	–	u	H21
2021-10-09 02:08:47	C	22 54 40.57	+21 27 01.5	–	u	H21