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
1990-02-04 16:31:27 12 05 40.34 -05 05 50.1 g 413
1990-02-04 17:36:27 12 05 38.95 -05 05 12.2 g 413
1996-10-09 06:05:10 C 20 52 17.70 -18 18 20.3 c 566
1996-10-09 06:20:53 C 20 52 18.05 -18 18 36.0 c 566
1996-10-09 06:33:25 C 20 52 18.52 -18 18 47.7 c 566
1996-10-10 05:35:21 C 20 52 59.11 -18 41 08.8 c 566
1996-10-10 05:47:56 C 20 52 59.61 -18 41 21.3 c 566
1996-10-10 06:06:36 C 20 53 00.13 -18 41 39.3 c 566
1996-10-11 18:03:17 C 20 54 10.22 -19 15 51.8 z 046
1996-10-11 18:06:14 C 20 54 10.30 -19 15 54.7 z 046
1996-10-11 18:09:19 C 20 54 10.44 -19 15 57.9 z 046
1996-10-11 18:13:12 C 20 54 10.52 -19 16 01.4 z 046
1996-10-11 18:40:09 C 20 54 11.36 -19 16 27.3 z 557
1996-10-11 18:56:19 C 20 54 11.98 -19 16 43.1 z 557
1996-10-11 19:00:31 C 20 54 12.01 -19 16 45.7 z 557
1996-10-12 04:10:20 C 20 54 30.90 -19 25 18.6 i 711
1996-10-12 04:29:12 C 20 54 31.53 -19 25 33.4 i 711
1996-10-13 02:34:31 C 20 55 20.02 -19 45 59.7 i 711
1996-10-13 02:53:46 C 20 55 20.74 -19 46 17.2 i 711
1996-10-14 17:55:45 C 20 56 53.26 -20 21 31.5 z 046
1996-10-14 17:59:02 C 20 56 53.31 -20 21 35.6 z 046
1996-10-14 18:02:11 C 20 56 53.49 -20 21 38.1 z 046
1996-10-16 10:56:45 C 20 58 39.84 -20 57 23.8 z 360
1996-10-16 11:03:29 C 20 58 40.14 -20 57 29.6 z 360
1996-10-16 11:09:44 C 20 58 40.40 -20 57 34.9 z 360
1996-11-01 12:40:11 C 21 23 08.43 -25 35 47.9 413
1996-11-01 12:45:00 C 21 23 08.80 -25 35 50.7 413
1996-11-02 13:20:39 C 21 25 09.42 -25 49 55.7 413
1996-11-02 13:26:11 C 21 25 09.86 -25 49 58.9 413
1996-12-17 07:40:28 C 23 34 28.39 -28 29 33.6 c 566
1996-12-17 07:52:38 C 23 34 30.24 -28 29 29.9 c 566
1996-12-17 08:05:25 C 23 34 32.08 -28 29 25.5 c 566
1997-01-10 05:21:24 C 01 04 23.23 -23 17 30.0 c 566
1997-01-10 05:33:36 C 01 04 25.19 -23 17 20.1 c 566
1997-01-10 05:45:49 C 01 04 27.02 -23 17 10.7 c 566
1997-01-12 16:51:52 C 01 14 02.72 -22 29 02.6 z 118
1997-01-12 17:00:02 C 01 14 04.04 -22 28 54.3 z 118
1997-01-12 17:08:43 C 01 14 05.50 -22 28 48.2 z 118
1997-01-12 17:14:26 C 01 14 06.48 -22 28 41.9 z 046
1997-01-12 17:17:31 C 01 14 06.85 -22 28 40.6 z 046
1997-01-12 17:20:25 C 01 14 07.42 -22 28 37.8 z 046
1997-01-13 16:58:36 C 01 17 58.01 -22 08 37.3 z 046
1997-01-13 17:01:18 C 01 17 58.38 -22 08 34.1 z 046
1997-01-13 17:03:59 C 01 17 58.90 -22 08 31.1 z 046
1997-02-09 10:43:16 C 03 02 16.32 -10 53 57.9 z 360
1997-02-09 10:50:00 C 03 02 17.40 -10 53 50.1 z 360
1997-02-09 10:55:44 C 03 02 18.29 -10 53 42.7 z 360
1997-02-28 18:50:51 C 04 15 05.43 -01 54 51.7 z 557
1997-02-28 18:54:45 C 04 15 06.08 -01 54 46.6 z 557
1997-03-07 10:31:45 C 04 39 10.94 +00 55 18.4 360