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
2007-09-15 05:46:27 C 20 27 54.72 -06 59 04.3 c 670
2007-09-16 04:07:10 C 20 27 28.19 -07 22 45.5 17.5 c 704
2007-09-16 04:24:40 C 20 27 27.78 -07 23 04.0 17.5 c 704
2007-09-16 04:41:30 C 20 27 27.40 -07 23 21.8 17.6 c 704
2007-09-16 04:58:10 C 20 27 27.06 -07 23 39.7 17.6 c 704
2007-09-16 05:14:54 C 20 27 26.72 -07 23 57.4 18.1 c 704
2007-10-11 02:41:53 C 20 31 55.74 -17 02 59.5 r G96
2007-10-11 02:49:56 C 20 31 55.99 -17 03 06.4 r G96
2007-10-11 02:57:54 C 20 31 56.24 -17 03 12.9 r G96
2007-10-11 03:05:53 C 20 31 56.53 -17 03 19.7 r G96
2007-10-12 19:35:53 C 20 33 25.82 -17 36 40.8 r 170
2007-10-12 19:37:06 C 20 33 25.85 -17 36 41.6 r 170
2007-10-12 19:38:25 C 20 33 25.89 -17 36 42.6 r 170
2007-10-14 02:06:56 C 20 34 39.11 -18 01 08.9 18.9 c 704
2007-10-14 02:23:24 C 20 34 39.80 -18 01 22.2 19.1 c 704
2007-10-14 02:39:56 C 20 34 40.31 -18 01 34.7 18.9 c 704
2007-10-14 03:12:50 C 20 34 41.68 -18 02 00.8 18.8 c 704
2007-10-15 02:52:22 C 20 35 42.14 -18 20 39.0 r 703
2007-10-15 03:00:08 C 20 35 42.39 -18 20 45.4 r 703
2007-10-15 03:08:01 C 20 35 42.79 -18 20 52.7 r 703
2007-10-18 02:15:39 C 20 39 02.59 -19 14 51.6 w 699
2007-10-18 02:39:21 C 20 39 03.73 -19 15 07.8 w 699
2007-10-18 03:03:03 C 20 39 04.95 -19 15 26.5 w 699
2007-10-18 03:26:45 C 20 39 06.05 -19 15 44.0 w 699
2007-11-04 01:45:46 C 21 06 22.15 -23 26 05.7 18.9 c 704
2007-11-04 02:03:36 C 21 06 23.59 -23 26 14.9 19.1 c 704
2007-11-04 02:39:17 C 21 06 26.47 -23 26 32.6 18.8 c 704
2007-11-04 02:57:07 C 21 06 27.95 -23 26 42.5 19.5 c 704
2007-11-08 10:27:13 C 21 15 30.20 -24 14 02.3 r E12
2007-11-08 10:38:47 C 21 15 31.21 -24 14 06.8 r E12
2007-11-08 10:50:21 C 21 15 32.25 -24 14 11.7 r E12
2007-11-14 03:05:45 C 21 28 37.95 -25 06 27.6 r 703
2007-11-14 03:16:50 C 21 28 38.96 -25 06 30.4 r 703
2007-11-14 03:28:01 C 21 28 40.18 -25 06 35.3 r 703
2007-11-14 03:39:06 C 21 28 41.26 -25 06 38.3 r 703
2008-02-09 02:31:50 C 02 31 57.39 -11 07 40.0 r 703
2008-02-09 02:40:33 C 02 31 58.76 -11 07 29.9 r 703
2008-02-09 02:49:16 C 02 32 00.20 -11 07 20.8 r 703
2008-02-09 02:57:59 C 02 32 01.64 -11 07 11.4 r 703
2008-03-01 02:42:27 C 03 53 26.37 -02 00 00.9 r 703
2008-03-01 02:52:28 C 03 53 27.96 -01 59 50.2 r 703
2008-03-01 03:02:24 C 03 53 29.54 -01 59 40.1 r 703
2008-03-01 03:12:10 C 03 53 31.05 -01 59 29.7 r 703
2008-03-07 02:48:25 C 04 16 05.16 +00 28 41.1 r 703
2008-03-07 02:56:10 C 04 16 06.31 +00 28 49.1 r 703
2008-03-07 03:03:54 C 04 16 07.53 +00 28 56.8 r 703
2008-03-07 03:11:34 C 04 16 08.72 +00 29 05.0 r 703
2010-06-13 05:49:06 C 17 24 43.22 +06 27 10.1 o H21
2010-06-13 06:09:26 C 17 24 42.39 +06 27 11.1 o H21
2010-06-13 06:28:45 C 17 24 41.59 +06 27 11.9 o H21