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
2011-11-25 08:28:52 C 10 53 22.80 -09 45 56.1 o 807
2011-11-25 08:34:41 C 10 53 23.25 -09 45 57.6 o 807
2011-11-25 08:42:31 C 10 53 23.86 -09 45 59.7 o 807
2012-01-08 14:01:39 C 11 48 32.333 -10 27 48.28 L F51
2012-01-08 14:17:58 C 11 48 32.650 -10 27 44.40 L F51
2012-01-08 15:10:06 C 11 48 33.603 -10 27 32.23 L F51
2012-01-08 15:26:16 C 11 48 33.893 -10 27 28.52 L F51
2012-01-18 11:39:22 C 11 51 29.28 -09 13 56.2 18.5 c 704
2012-01-18 11:58:12 C 11 51 29.33 -09 13 49.0 18.7 c 704
2012-01-18 12:17:01 C 11 51 29.37 -09 13 42.2 19.2 c 704
2012-01-18 12:37:26 C 11 51 29.41 -09 13 33.9 19.2 c 704
2012-01-30 08:07:59 C 11 49 45.17 -06 54 03.5 18.6 c 704
2012-01-30 08:44:29 C 11 49 44.59 -06 53 42.0 18.7 c 704
2012-01-30 09:02:47 C 11 49 44.24 -06 53 30.6 18.7 c 704
2012-01-31 15:59:44 C 11 49 11.771 -06 34 49.73 L F51
2012-01-31 16:12:19 C 11 49 11.523 -06 34 42.05 L F51
2012-02-02 11:14:01 C 11 48 20.95 -06 07 41.7 r 703
2012-02-02 11:21:14 C 11 48 20.70 -06 07 36.6 r 703
2012-02-02 11:28:38 C 11 48 20.55 -06 07 32.4 r 703
2012-02-02 11:35:59 C 11 48 20.44 -06 07 28.9 r 703
2012-02-05 13:11:15 C 11 46 37.127 -05 18 24.62 L F51
2012-02-05 13:27:33 C 11 46 36.670 -05 18 13.48 L F51
2012-02-15 10:10:57 C 11 38 57.42 -02 19 31.6 18.1 c 704
2012-02-15 10:29:09 C 11 38 56.57 -02 19 15.8 18.6 c 704
2012-02-15 10:46:53 C 11 38 55.90 -02 19 00.6 18.4 c 704
2012-02-15 11:22:02 C 11 38 54.44 -02 18 33.7 18.8 c 704
2012-02-16 13:49:07 C 11 37 52.825 -01 56 55.91 L F51
2012-02-16 14:04:25 C 11 37 52.188 -01 56 43.30 L F51
2012-02-19 08:02:16 C 11 35 11.65 -01 01 48.5 18.6 c 704
2012-02-19 08:19:50 C 11 35 10.88 -01 01 33.9 18.5 c 704
2012-02-19 08:37:19 C 11 35 10.10 -01 01 19.0 18.7 c 704
2012-02-19 08:54:58 C 11 35 09.26 -01 01 03.2 18.5 c 704
2012-02-19 09:12:26 C 11 35 08.55 -01 00 49.6 18.8 c 704
2012-02-22 09:53:26 C 11 32 00.99 +00 00 59.9 r 703
2012-02-22 10:06:13 C 11 32 00.42 +00 01 10.8 r 703
2012-02-22 10:18:59 C 11 31 59.84 +00 01 21.7 r 703
2012-02-22 10:31:41 C 11 31 59.23 +00 01 33.1 r 703
2012-02-23 01:36:27 C 11 31 19.45 +00 14 29.1 c A24
2012-02-23 01:37:28 C 11 31 19.36 +00 14 30.1 c A24
2012-02-23 01:38:31 C 11 31 19.34 +00 14 30.9 c A24
2012-02-23 01:39:33 C 11 31 19.28 +00 14 31.0 c A24
2012-02-24 08:11:03 C 11 29 57.66 +00 40 50.1 17.8 c 704
2012-02-24 08:28:23 C 11 29 56.84 +00 41 04.9 18.4 c 704
2012-02-24 08:45:51 C 11 29 56.09 +00 41 19.6 18.7 c 704
2012-02-24 09:03:03 C 11 29 55.26 +00 41 34.3 18.6 c 704
2012-02-24 09:20:16 C 11 29 54.44 +00 41 49.7 18.6 c 704
2012-02-24 12:59:29 C 11 29 44.460 +00 45 00.10 L F51
2012-02-24 13:13:45 C 11 29 43.786 +00 45 12.43 L F51
2012-02-24 13:28:31 C 11 29 43.093 +00 45 25.21 L F51
2012-02-24 13:43:10 C 11 29 42.403 +00 45 37.82 L F51