IAA RAS IAA Minor Planet Database

2021 TW2

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2140392715 ± 4.21e-06
Semi-major axis (a)1.2634357529 AU ± 6.73e-06
Inclination (i)4.12608635° ± 6.75e-05
Long. of Asc. Node (Ω)18.09796527° ± 3.10e-05
Arg. of Perihelion (ω)13.59987038° ± 9.84e-05
Mean Anomaly (M)314.49319706° ± 8.20e-03
Mean Motion (n)0.6940368539°/day ± 5.55e-06
Perihelion dist (q)0.99301088 AU ± 7.50e-06
Aphelion dist (Q)1.53386062 AU ± 9.75e-06
Orbital Period1.42013537 yr ± 1.13e-05
Physical Parameters
H (abs. magnitude)25.74
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.157″
Uncertainty1
Orbit TypeApollo
MOID0.001794 AU
Observations Used54
Oppositions1
Arc Total2021-2022
First Observation Used2021-09-23
Last Observation Used2022-01-09
Observations (56)
Date Type RA Dec Mag Band Observatory
2021-09-23 11:32:33 C 02 23 35.294 -45 30 24.06 – V F51
2021-09-23 11:43:44 C 02 23 42.256 -45 29 47.78 – V F51
2021-09-23 11:54:55 C 02 23 49.172 -45 29 11.07 – V F51
2021-09-23 12:06:06 C 02 23 56.111 -45 28 33.67 – V F51
2021-10-02 14:22:38 C 05 33 48.572 -10 43 31.17 – U F52
2021-10-02 14:51:59 C 05 34 08.521 -10 36 28.63 – V F52
2021-10-02 15:06:36 C 05 34 18.449 -10 32 57.20 – U F52
2021-10-03 14:00:06 C 05 52 27.876 -05 04 47.24 – U F52
2021-10-03 14:16:39 C 05 52 38.462 -05 00 54.64 – U F52
2021-10-04 07:02:19 C 06 05 12.29 -01 02 25.3 – u 807
2021-10-04 07:04:31 C 06 05 13.75 -01 01 55.4 – u 807
2021-10-04 07:06:41 C 06 05 15.08 -01 01 26.8 – u 807
2021-10-05 14:36:44 C 06 26 38.791 +05 35 59.64 – V T12
2021-10-07 15:17:31 C 06 55 27.599 +14 18 10.05 – V T12
2021-10-07 15:18:19 C 06 55 27.946 +14 18 17.77 – V T12
2021-10-07 15:19:00 C 06 55 28.241 +14 18 24.14 – V T12
2021-10-07 15:19:57 C 06 55 28.647 +14 18 33.22 – V T12
2021-10-08 04:23:02 C 07 02 24.788 +16 14 54.72 – V Z84
2021-10-08 04:29:10 C 07 02 27.417 +16 15 49.32 – V Z84
2021-10-08 04:35:17 C 07 02 30.071 +16 16 43.62 – V Z84
2021-10-11 03:12:14 C 07 34 23.901 +24 39 57.15 – V Z84
2021-10-11 03:38:14 C 07 34 32.655 +24 42 34.22 – V Z84
2021-10-11 04:00:24 C 07 34 39.975 +24 44 47.31 – V Z84
2021-10-11 12:08:28 C 07 37 45.26 +25 30 46.2 – V 291
2021-10-11 12:11:38 C 07 37 46.21 +25 31 04.1 – V 291
2021-10-11 12:14:51 C 07 37 47.20 +25 31 22.2 – V 291
2021-10-12 03:19:53 C 07 43 27.449 +26 48 56.90 – V Z84
2021-10-12 03:59:34 C 07 43 39.486 +26 52 26.50 – V Z84
2021-10-14 03:11:47 C 07 59 16.524 +30 17 05.75 – V Z84
2021-10-14 03:35:28 C 07 59 22.627 +30 18 43.37 – V Z84
2021-10-14 03:59:03 C 07 59 28.557 +30 20 19.89 – V Z84
2021-10-14 04:22:35 C 07 59 34.377 +30 21 54.76 – V Z84
2021-10-14 10:34:16 C 08 01 29.67 +30 44 51.7 – V 291
2021-10-14 10:41:54 C 08 01 31.55 +30 45 22.0 – V 291
2021-10-14 10:49:35 C 08 01 33.45 +30 45 52.8 – V 291
2021-10-15 11:18:24 C 08 08 28.98 +32 09 18.8 – o 291
2021-10-15 11:23:44 C 08 08 30.18 +32 09 36.4 – V 695
2021-10-15 11:29:54 C 08 08 31.51 +32 09 57.9 – o 291
2021-10-15 11:30:46 C 08 08 31.71 +32 10 00.7 – V 695
2021-10-15 11:41:26 C 08 08 33.98 +32 10 38.1 – o 291
2021-10-16 03:23:38 C 08 12 46.552 +32 57 51.84 – V Z84
2021-10-16 04:10:47 C 08 12 56.574 +33 00 24.05 – V Z84
2021-10-17 11:26:22 C 08 20 38.61 +34 24 55.2 – V 695
2021-10-17 11:33:05 C 08 20 39.84 +34 25 14.0 – V 695
2021-10-17 11:39:48 C 08 20 41.07 +34 25 32.4 – V 695
2021-10-18 03:21:50 C 08 24 18.680 +35 02 28.86 – V Z84
2021-10-20 10:04:31 C 08 35 38.89 +36 53 37.2 – V 695
2021-10-20 10:17:24 C 08 35 40.92 +36 54 04.9 – V 695
2021-10-20 10:30:16 C 08 35 43.00 +36 54 32.6 – V 695
2021-10-25 02:54:29 C 08 54 20.542 +39 34 09.14 – V Z84