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
2018-09-03 10:47:20 C 20 31 55.92 -02 10 29.0 U T08
2018-09-07 02:48:16 C 20 28 44.48 -03 40 21.0 V G96
2018-09-07 02:56:18 C 20 28 44.18 -03 40 29.0 V G96
2018-09-07 03:04:20 C 20 28 43.89 -03 40 37.3 V G96
2018-09-07 03:12:22 C 20 28 43.58 -03 40 45.4 V G96
2018-09-08 12:51:00 C 20 27 37.64 -04 15 37.3 q D29
2018-09-08 13:11:21 C 20 27 36.94 -04 15 58.4 q D29
2018-09-08 13:31:43 C 20 27 36.25 -04 16 19.5 q D29
2018-09-09 09:45:44 C 20 26 58.60 -04 37 21.1 U T05
2018-09-09 10:00:53 C 20 26 58.09 -04 37 37.1 U T05
2018-09-09 10:15:24 C 20 26 57.63 -04 37 52.0 U T05
2018-09-09 10:30:43 C 20 26 57.15 -04 38 07.9 U T05
2018-09-11 09:33:28 C 20 25 37.33 -05 27 17.4 U T08
2018-09-11 09:48:42 C 20 25 36.88 -05 27 33.4 U T08
2018-09-11 10:03:13 C 20 25 36.46 -05 27 48.9 U T08
2018-09-11 10:18:33 C 20 25 36.05 -05 28 04.8 U T08
2018-09-12 16:23:45 C 20 24 50.81 -05 59 35.5 q C97
2018-09-12 16:25:57 C 20 24 50.69 -05 59 38.7 q C97
2018-09-12 16:28:27 C 20 24 50.59 -05 59 41.2 q C97
2018-09-14 03:25:11 C 20 24 02.57 -06 36 20.6 V G96
2018-09-14 03:33:26 C 20 24 02.37 -06 36 29.2 V G96
2018-09-14 03:41:41 C 20 24 02.17 -06 36 37.9 V G96
2018-09-14 03:49:56 C 20 24 01.98 -06 36 46.2 V G96
2018-09-15 08:50:43 C 20 23 26.20 -07 07 06.6 U T08
2018-09-15 09:05:04 C 20 23 25.89 -07 07 21.4 U T08
2018-09-15 09:33:38 C 20 23 25.26 -07 07 51.6 U T08
2018-09-16 08:26:11 C 20 23 00.47 -07 31 45.5 U T05
2018-09-16 08:40:58 C 20 23 00.15 -07 32 01.2 U T05
2018-09-16 08:54:19 C 20 22 59.93 -07 32 14.7 U T05
2018-09-16 09:09:04 C 20 22 59.61 -07 32 30.4 U T05
2018-09-26 08:43:31 C 20 21 20.35 -11 36 39.2 U T08
2018-09-26 08:55:41 C 20 21 20.35 -11 36 51.8 U T08
2018-09-26 09:09:13 C 20 21 20.37 -11 37 04.7 U T08
2018-09-26 09:21:27 C 20 21 20.41 -11 37 17.2 U T08
2018-09-28 04:34:52 C 20 21 35.55 -12 19 33.0 U I41
2018-09-28 04:36:10 C 20 21 35.56 -12 19 34.3 U I41
2018-10-01 08:23:23 C 20 22 25.91 -13 31 45.3 U T08
2018-10-01 08:37:41 C 20 22 26.06 -13 31 59.5 U T08
2018-10-01 08:52:00 C 20 22 26.28 -13 32 12.4 U T08
2018-10-01 09:06:26 C 20 22 26.38 -13 32 25.7 U T08
2018-10-03 08:01:24 C 20 23 13.92 -14 15 53.6 U T05
2018-10-03 08:15:40 C 20 23 14.13 -14 16 07.0 U T05
2018-10-03 08:30:06 C 20 23 14.38 -14 16 20.1 U T05
2018-10-03 08:44:35 C 20 23 14.60 -14 16 33.1 U T05
2018-10-04 05:30:12 C 20 23 40.039 -14 35 27.62 U F52
2018-10-04 06:10:07 C 20 23 40.768 -14 36 03.70 U F52
2018-10-04 06:30:03 C 20 23 41.129 -14 36 21.71 U F52
2018-10-05 19:24:22 S 20 24 31.56 -15 09 19.9 L C51
2018-10-06 01:41:21 S 20 24 40.80 -15 14 53.4 L C51
2018-10-06 03:14:53 S 20 24 43.13 -15 16 17.4 L C51