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
1997-03-07 10:38:45 C 04 39 11.98 +00 55 25.5 360
1997-03-07 10:44:30 C 04 39 12.86 +00 55 31.0 360
1997-03-09 18:27:25 C 04 47 29.23 +01 51 40.9 z 046
1997-03-09 18:31:58 C 04 47 29.87 +01 51 45.0 z 046
1997-03-09 18:40:05 C 04 47 31.10 +01 51 52.4 z 046
1997-03-09 18:44:01 C 04 47 31.69 +01 51 57.8 z 046
1998-06-18 05:28:44 C 14 07 37.90 +09 17 36.7 c 696
1998-06-18 05:39:19 C 14 07 37.79 +09 17 35.4 c 696
1999-05-22 10:34:13 C 17 47 54.78 +05 19 11.6 i 693
2000-12-23 11:23:23 C 11 41 28.83 -10 42 23.3 696
2000-12-23 11:27:04 C 11 41 28.99 -10 42 23.1 696
2001-01-19 09:37:40 C 11 57 08.29 -08 36 51.3 18.7 c 704
2001-01-19 10:02:01 C 11 57 08.31 -08 36 42.4 18.8 c 704
2001-01-19 10:24:47 C 11 57 08.26 -08 36 33.6 19.4 c 704
2001-01-19 10:46:54 C 11 57 08.29 -08 36 24.1 19.0 c 704
2001-01-19 11:09:09 C 11 57 08.40 -08 36 15.7 19.1 c 704
2001-02-02 09:25:39 C 11 54 10.43 -05 46 25.3 18.4 c 704
2001-02-02 09:48:19 C 11 54 09.87 -05 46 11.3 18.7 c 704
2001-02-02 10:09:51 C 11 54 09.38 -05 45 58.3 18.8 c 704
2001-02-02 10:31:54 C 11 54 08.93 -05 45 45.4 18.6 c 704
2001-02-03 09:11:37 C 11 53 40.62 -05 31 32.2 18.2 c 704
2001-02-03 09:32:57 C 11 53 40.10 -05 31 18.1 18.7 c 704
2001-02-03 09:54:30 C 11 53 39.61 -05 31 04.9 18.5 c 704
2001-02-03 10:15:52 C 11 53 39.05 -05 30 50.5 19.1 c 704
2001-02-03 10:37:13 C 11 53 38.64 -05 30 37.4 18.8 c 704
2001-02-22 07:35:11 C 11 38 19.30 +00 08 40.4 18.2 c 704
2001-02-22 07:55:30 C 11 38 18.35 +00 08 57.2 18.3 c 704
2001-02-22 08:15:45 C 11 38 17.48 +00 09 13.8 18.2 c 704
2001-02-22 08:36:06 C 11 38 16.52 +00 09 31.1 18.5 c 704
2001-02-22 08:56:20 C 11 38 15.68 +00 09 47.5 18.6 c 704
2001-02-22 10:17:16 C 11 38 11.933 +00 10 54.45 645
2001-02-22 10:18:27 C 11 38 11.881 +00 10 55.73 645
2001-02-22 10:20:51 C 11 38 11.772 +00 10 57.58 645
2001-02-22 10:22:02 C 11 38 11.753 +00 10 58.40 645
2001-03-18 05:57:33 C 11 12 56.66 +07 43 49.7 18.5 c 704
2001-03-18 06:16:10 C 11 12 55.95 +07 44 03.2 18.6 c 704
2001-03-18 06:33:02 C 11 12 55.27 +07 44 15.2 c 699
2001-03-18 06:34:48 C 11 12 55.12 +07 44 16.2 18.6 c 704
2001-03-18 06:53:25 C 11 12 54.41 +07 44 28.6 18.4 c 704
2001-03-18 07:12:03 C 11 12 53.61 +07 44 41.0 18.6 c 704
2001-03-18 07:31:22 C 11 12 52.89 +07 44 54.2 c 699
2001-03-18 08:29:47 C 11 12 50.51 +07 45 34.8 c 699
2001-03-18 09:28:23 C 11 12 48.09 +07 46 14.4 c 699
2001-03-20 05:40:16 C 11 11 06.87 +08 15 56.1 d 691
2001-03-20 06:11:10 C 11 11 05.66 +08 16 16.6 d 691
2001-03-20 06:41:50 C 11 11 04.48 +08 16 36.9 d 691
2001-03-26 05:49:15 C 11 06 08.48 +09 44 29.0 18.9 c 704
2001-03-26 06:07:00 C 11 06 07.91 +09 44 37.9 18.9 c 704
2001-03-26 06:24:47 C 11 06 07.33 +09 44 49.1 19.3 c 704
2001-03-26 06:42:33 C 11 06 06.71 +09 44 58.4 19.5 c 704