9400 (1994 TW1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5807034709 ± 3.55e-09
Semi-major axis (a)2.5881020625 AU ± 1.90e-09
Inclination (i)35.98468731° ± 1.16e-06
Long. of Asc. Node (Ω)3.34616125° ± 1.27e-06
Arg. of Perihelion (ω)62.17387561° ± 8.67e-07
Mean Anomaly (M)145.88459058° ± 1.05e-06
Mean Motion (n)0.2367228484°/day ± 2.60e-10
Perihelion dist (q)1.08518221 AU ± 9.22e-09
Aphelion dist (Q)4.09102191 AU ± 9.66e-09
Orbital Period4.16362970 yr ± 4.58e-09
Physical Parameters
H (abs. magnitude)14.84
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.051″
Uncertainty0
Orbit TypeAmor
MOID0.283728 AU
Observations Used1787
Gaia Obs Used61
Oppositions19
Arc Total1991-2025
First Observation Used1991-03-18
Last Observation Used2025-03-29
Observations (2003)
Date Type RA Dec Mag Band Observatory
2016-04-28 08:21:11 C 10 11 24.19 +20 16 42.2 L T05
2016-04-28 08:43:07 C 10 11 24.48 +20 16 22.5 L T05
2016-04-28 09:08:20 C 10 11 24.82 +20 16 00.6 L T05
2016-04-28 12:20:46 C 10 11 27.93 +20 13 04.2 q D29
2016-04-28 12:46:14 C 10 11 28.27 +20 12 41.0 q D29
2016-04-28 13:11:40 C 10 11 28.62 +20 12 17.7 q D29
2016-05-05 04:26:30 C 10 14 24.72 +17 53 55.0 q 703
2016-05-05 04:35:10 C 10 14 24.93 +17 53 48.1 q 703
2016-05-05 04:43:50 C 10 14 25.08 +17 53 40.3 q 703
2016-05-05 04:52:31 C 10 14 25.24 +17 53 32.8 q 703
2016-05-06 07:12:07 C 10 15 00.023 +17 31 46.50 L F51
2016-05-06 07:13:03 C 10 15 00.032 +17 31 45.79 L F51
2016-05-06 07:29:09 C 10 15 00.374 +17 31 32.51 L F51
2016-05-06 07:30:06 C 10 15 00.393 +17 31 31.72 L F51
2016-05-06 08:03:19 C 10 15 01.098 +17 31 04.29 L F51
2016-05-06 08:04:15 C 10 15 01.114 +17 31 03.52 L F51
2016-05-11 04:11:40 C 10 17 50.93 +15 58 11.7 q 703
2016-05-11 04:20:21 C 10 17 51.13 +15 58 04.8 q 703
2016-05-11 04:29:03 C 10 17 51.39 +15 57 58.5 q 703
2016-05-11 05:16:53 C 10 17 52.60 +15 57 21.0 o 691
2016-05-11 05:26:17 C 10 17 52.85 +15 57 13.7 o 691
2016-05-11 05:35:34 C 10 17 53.07 +15 57 06.4 o 691
2016-05-27 04:22:31 C 10 29 43.91 +11 22 26.7 V G45
2016-05-27 04:56:50 C 10 29 45.07 +11 22 03.2 V G45
2016-05-27 05:27:16 C 10 29 46.14 +11 21 43.4 V G45
2016-05-27 05:59:41 C 10 29 47.23 +11 21 21.5 V G45
2016-05-28 04:23:45 C 10 30 34.51 +11 06 30.6 q 703
2016-05-28 04:29:30 C 10 30 34.80 +11 06 26.6 q 703
2016-05-28 04:41:03 C 10 30 35.23 +11 06 21.7 q 703
2016-06-06 03:32:46 C 10 38 32.98 +08 49 08.8 q 703
2016-06-06 03:41:25 C 10 38 33.31 +08 49 02.4 q 703
2016-06-06 03:50:04 C 10 38 33.72 +08 48 57.5 q 703
2016-06-06 03:58:43 C 10 38 33.99 +08 48 51.2 q 703
2016-06-08 03:45:28 C 10 40 25.78 +08 19 31.3 q G96
2016-06-08 03:53:30 C 10 40 26.09 +08 19 26.5 q G96
2016-06-08 04:01:34 C 10 40 26.42 +08 19 21.5 q G96
2016-06-08 04:09:39 C 10 40 26.73 +08 19 16.5 q G96
2017-05-21 07:33:04 C 13 18 19.419 -43 23 06.50 L F51
2017-05-21 07:57:15 C 13 18 18.431 -43 23 00.20 L F51
2017-05-21 08:09:23 C 13 18 17.980 -43 22 57.10 L F51
2019-07-01 13:55:16 C 00 07 12.62 -42 51 50.8 V T05
2019-07-01 13:59:15 C 00 07 12.81 -42 51 52.5 V T05
2019-07-01 14:13:00 C 00 07 13.14 -42 51 54.6 V T05
2019-07-01 14:36:30 C 00 07 13.77 -42 52 00.2 V T05
2019-07-03 14:14:26 C 00 08 32.66 -43 02 39.6 V T08
2019-07-03 14:19:05 C 00 08 32.80 -43 02 40.3 V T08
2019-07-03 14:26:22 C 00 08 32.97 -43 02 41.0 V T08
2019-07-03 14:43:25 C 00 08 33.32 -43 02 45.7 V T08
2019-08-12 07:45:57 C 23 58 09.08 -48 27 07.1 o W92
2019-08-12 07:49:39 C 23 58 08.93 -48 27 08.0 o W92