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
2018-10-06 04:49:41 S 20 24 45.65 -15 17 40.6 L C51
2018-10-06 06:23:55 S 20 24 48.01 -15 19 03.9 L C51
2018-10-06 09:32:25 S 20 24 52.77 -15 21 50.8 L C51
2018-10-06 12:40:56 S 20 24 57.63 -15 24 35.8 L C51
2018-10-06 15:49:14 S 20 25 02.58 -15 27 20.2 L C51
2018-10-10 02:01:54 C 20 27 31.31 -16 37 49.4 V 703
2018-10-10 02:09:27 C 20 27 31.60 -16 37 56.4 V 703
2018-10-10 02:24:30 C 20 27 32.02 -16 38 07.7 V 703
2018-10-12 07:18:33 C 20 29 27.09 -17 21 28.8 U T08
2018-10-12 07:30:31 C 20 29 27.50 -17 21 37.7 U T08
2018-10-12 07:43:54 C 20 29 28.03 -17 21 47.7 U T08
2018-10-12 07:57:13 C 20 29 28.50 -17 21 59.0 U T08
2018-10-14 06:49:52 C 20 31 23.78 -17 59 08.0 U T05
2018-10-14 07:04:07 C 20 31 24.36 -17 59 19.0 U T05
2018-10-14 07:10:55 C 20 31 24.60 -17 59 23.8 U T05
2018-10-14 07:17:36 C 20 31 24.95 -17 59 29.5 U T05
2018-10-14 07:31:44 C 20 31 25.50 -17 59 40.8 U T05
2018-10-14 07:38:21 C 20 31 25.81 -17 59 45.4 U T05
2018-10-14 07:52:33 C 20 31 26.31 -17 59 56.6 U T05
2018-10-27 01:49:21 C 20 48 41.31 -21 31 34.5 V 703
2018-10-27 01:58:03 C 20 48 41.80 -21 31 39.2 V 703
2018-10-27 02:06:46 C 20 48 42.38 -21 31 43.2 V 703
2018-10-27 02:15:29 C 20 48 42.94 -21 31 49.7 V 703
2018-10-27 10:34:49 C 20 49 17.71 -21 36 49.2 q D29
2018-10-27 10:55:11 C 20 49 19.08 -21 37 01.3 q D29
2018-10-27 11:15:32 C 20 49 20.46 -21 37 13.3 q D29
2018-10-29 01:47:59 C 20 52 05.68 -21 59 47.8 V 703
2018-10-29 01:55:31 C 20 52 06.21 -21 59 51.7 V 703
2018-10-29 02:03:03 C 20 52 06.78 -21 59 56.9 V 703
2018-10-29 02:10:35 C 20 52 07.26 -22 00 00.6 V 703
2018-11-03 06:51:58 C 21 01 49.42 -23 06 52.3 U T05
2018-11-03 07:05:24 C 21 01 50.54 -23 06 58.8 U T05
2018-11-03 07:06:46 C 21 01 50.69 -23 06 59.0 U T05
2018-11-03 07:31:40 C 21 01 52.68 -23 07 12.4 U T05
2018-11-03 07:32:58 C 21 01 52.76 -23 07 12.8 U T05
2018-11-03 07:45:46 C 21 01 53.87 -23 07 19.2 U T05
2018-11-12 02:17:15 C 21 20 58.11 -24 38 36.0 V 703
2018-11-12 02:25:27 C 21 20 58.98 -24 38 38.7 V 703
2018-11-12 02:33:38 C 21 20 59.70 -24 38 41.5 V 703
2018-11-12 02:41:49 C 21 21 00.54 -24 38 43.7 V 703
2018-11-13 05:46:52 C 21 23 41.51 -24 48 26.5 U T08
2018-11-13 05:58:50 C 21 23 42.51 -24 48 33.7 U T08
2018-11-13 06:00:49 C 21 23 42.97 -24 48 31.4 U T08
2018-11-13 06:13:26 C 21 23 44.12 -24 48 35.2 U T08
2018-11-13 06:26:43 C 21 23 45.45 -24 48 40.8 U T08
2018-11-13 06:39:23 C 21 23 46.63 -24 48 43.6 U T08
2018-11-27 06:10:40 C 22 00 59.26 -26 09 59.8 U T05
2018-11-27 06:22:45 C 22 01 00.67 -26 10 01.7 U T05
2018-11-27 06:34:02 C 22 01 02.01 -26 10 03.3 U T05
2018-11-27 06:46:42 C 22 01 03.51 -26 10 04.4 U T05