21277 (1996 TO5)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5203590790 ± 1.59e-08
Semi-major axis (a)2.3779638326 AU ± 3.40e-09
Inclination (i)20.94777186° ± 5.24e-06
Long. of Asc. Node (Ω)167.32894408° ± 6.56e-06
Arg. of Perihelion (ω)250.20025431° ± 8.90e-06
Mean Anomaly (M)314.30877695° ± 5.37e-06
Mean Motion (n)0.2687846164°/day ± 5.77e-10
Perihelion dist (q)1.14056876 AU ± 3.77e-08
Aphelion dist (Q)3.61535890 AU ± 3.81e-08
Orbital Period3.66697431 yr ± 7.87e-09
Physical Parameters
H (abs. magnitude)16.18
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.376″
Uncertainty0
Orbit TypeAmor
MOID0.312571 AU
Observations Used971
Oppositions25
Arc Total1990-2024
First Observation Used1990-02-04
Last Observation Used2024-06-13
Observations (1030)
Date Type RA Dec Mag Band Observatory
2001-03-26 07:00:31 C 11 06 06.15 +09 45 09.1 19.0 c 704
2001-03-26 08:48:26 C 11 06 03.06 +09 46 13.1 20.5 c 608
2001-03-26 09:04:39 C 11 06 02.55 +09 46 21.8 20.5 c 608
2001-03-26 09:19:19 C 11 06 02.06 +09 46 30.0 20.0 c 608
2001-03-29 03:16:12 C 11 04 05.22 +10 22 23.8 c 699
2001-03-29 03:54:20 C 11 04 04.13 +10 22 44.8 c 699
2001-03-29 04:32:33 C 11 04 03.00 +10 23 05.4 c 699
2001-03-29 05:10:58 C 11 04 01.88 +10 23 23.4 c 699
2001-03-31 05:14:00 C 11 02 44.92 +10 47 43.1 18.6 c 704
2001-03-31 05:34:55 C 11 02 44.39 +10 47 55.3 18.7 c 704
2001-03-31 05:55:45 C 11 02 43.85 +10 48 04.3 19.0 c 704
2001-03-31 06:16:16 C 11 02 43.24 +10 48 14.3 18.6 c 704
2005-03-20 05:01:30 C 13 45 11.48 +04 49 59.8 o 950
2007-06-22 09:59:10 C 21 28 52.94 +07 58 04.9 o 696
2007-06-22 10:19:30 C 21 28 53.04 +07 58 09.0 o 696
2007-07-28 02:01:28 C 21 17 15.40 +08 08 14.7 c 442
2007-07-28 02:05:44 C 21 17 15.22 +08 08 13.3 c 442
2007-07-28 02:07:58 C 21 17 15.19 +08 08 13.3 c 442
2007-07-28 02:10:01 C 21 17 15.05 +08 08 12.3 c 442
2007-08-03 22:03:38 C 21 10 52.14 +07 11 04.2 c A48
2007-08-03 22:13:51 C 21 10 51.70 +07 11 00.1 c A48
2007-08-03 22:24:04 C 21 10 51.23 +07 10 55.6 c A48
2007-08-03 22:34:17 C 21 10 50.81 +07 10 51.6 c A48
2007-08-04 23:49:06 C 21 09 45.76 +06 59 49.7 c 442
2007-08-04 23:51:27 C 21 09 45.67 +06 59 48.4 c 442
2007-08-04 23:55:07 C 21 09 45.54 +06 59 47.1 c 442
2007-08-08 07:50:15 C 21 06 10.99 +06 20 47.4 r H45
2007-08-08 07:52:12 C 21 06 10.90 +06 20 46.4 r H45
2007-08-08 07:54:42 C 21 06 10.77 +06 20 45.1 r H45
2007-08-08 07:56:44 C 21 06 10.68 +06 20 44.0 r H45
2007-08-08 07:59:31 C 21 06 10.55 +06 20 42.3 r H45
2007-08-08 22:04:08 C 21 05 32.09 +06 13 12.7 r J51
2007-08-09 00:45:41 C 21 05 24.28 +06 11 44.6 r J51
2007-08-22 05:18:44 C 20 49 57.22 +02 32 02.4 17.6 c 704
2007-08-22 05:36:48 C 20 49 56.21 +02 31 47.8 17.7 c 704
2007-08-22 05:55:12 C 20 49 55.30 +02 31 32.6 17.6 c 704
2007-08-22 06:13:06 C 20 49 54.36 +02 31 16.8 17.8 c 704
2007-09-08 21:25:09 C 20 31 57.55 -04 17 37.6 r 130
2007-09-08 21:28:16 C 20 31 57.43 -04 17 41.1 r 130
2007-09-08 21:30:56 C 20 31 57.33 -04 17 43.7 r 130
2007-09-08 21:33:50 C 20 31 57.26 -04 17 47.0 r 130
2007-09-11 04:33:17 C 20 30 18.03 -05 15 51.2 r 703
2007-09-11 04:42:33 C 20 30 17.78 -05 16 01.1 r 703
2007-09-11 04:51:48 C 20 30 17.46 -05 16 10.6 r 703
2007-09-11 05:01:01 C 20 30 17.24 -05 16 21.8 r 703
2007-09-13 21:34:03 C 20 28 37.58 -06 24 51.7 c J51
2007-09-13 21:43:02 C 20 28 37.35 -06 25 01.0 c J51
2007-09-13 21:50:23 C 20 28 37.16 -06 25 08.6 c J51
2007-09-15 04:14:00 C 20 27 56.89 -06 57 26.6 c 670
2007-09-15 05:11:00 C 20 27 55.59 -06 58 26.6 c 670