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
2020-03-16 22:11:00 n 04 05 04.00 +59 29 43.3 V Z43
2020-03-19 18:29:50 C 04 29 27.11 +59 10 34.2 a 233
2020-03-19 18:38:11 C 04 29 30.04 +59 10 30.5 a 233
2020-03-19 18:42:04 C 04 29 31.43 +59 10 29.0 a 233
2020-03-20 18:51:53 C 04 37 58.41 +59 00 08.9 q K73
2020-03-20 19:02:26 C 04 38 02.02 +59 00 04.6 q K73
2020-03-20 19:11:41 C 04 38 05.25 +58 59 59.9 q K73
2020-03-20 19:29:49 C 04 38 11.55 +58 59 50.0 q K73
2020-03-20 19:36:48 C 04 38 13.92 +58 59 45.3 q K73
2020-03-22 02:35:29 C 04 48 53.71 +58 43 59.4 V 703
2020-03-22 02:43:17 C 04 48 56.34 +58 43 55.0 V 703
2020-03-22 02:51:06 C 04 48 58.97 +58 43 50.5 V 703
2020-03-22 02:58:56 C 04 49 01.68 +58 43 46.0 V 703
2020-03-23 20:44:43 n 05 03 03.10 +58 18 01.1 V Z43
2020-03-23 21:22:17 n 05 03 15.52 +58 17 35.4 V Z43
2020-03-23 21:34:50 n 05 03 19.61 +58 17 26.7 V Z43
2020-03-23 21:46:49 n 05 03 23.56 +58 17 18.2 V Z43
2020-03-23 21:57:29 n 05 03 27.08 +58 17 10.8 V Z43
2020-03-24 06:27:20 C 05 06 14.92 +58 11 25.7 V T05
2020-03-24 06:31:22 C 05 06 16.24 +58 11 22.8 V T05
2020-03-24 06:42:06 C 05 06 19.78 +58 11 15.0 V T05
2020-03-24 06:56:23 C 05 06 24.36 +58 11 04.9 V T05
2020-03-26 20:46:13 n 05 26 10.42 +57 23 07.9 V Z43
2020-03-26 20:56:35 n 05 26 13.63 +57 22 59.1 V Z43
2020-03-26 21:07:43 n 05 26 17.06 +57 22 49.6 V Z43
2020-03-26 21:17:21 n 05 26 20.12 +57 22 41.4 V Z43
2020-03-26 21:35:40 n 05 26 25.73 +57 22 25.7 V Z43
2020-03-28 06:15:58 C 05 36 25.41 +56 53 35.2 V T05
2020-03-28 06:31:34 C 05 36 30.07 +56 53 20.3 V T05
2020-03-28 06:45:47 C 05 36 34.33 +56 53 07.2 V T05
2020-04-01 17:54:01 C 06 07 05.04 +55 03 55.1 V L76
2020-04-01 18:05:41 C 06 07 08.20 +55 03 41.9 V L76
2020-04-01 18:18:08 C 06 07 11.46 +55 03 28.0 V L76
2020-04-01 19:49:45 C 06 07 36.12 +55 01 46.7 V A16
2020-04-01 20:00:28 C 06 07 38.97 +55 01 34.1 V A16
2020-04-01 20:11:11 C 06 07 41.86 +55 01 22.1 V A16
2020-04-01 20:21:54 C 06 07 44.81 +55 01 10.0 V A16
2020-04-03 03:12:51 C 06 15 51.92 +54 26 17.4 V 703
2020-04-03 03:21:07 C 06 15 54.07 +54 26 07.9 V 703
2020-04-03 03:29:23 C 06 15 56.17 +54 25 58.0 V 703
2020-04-03 03:37:39 C 06 15 58.27 +54 25 48.5 V 703
2020-04-03 20:01:20 C 06 20 10.31 +54 06 42.4 V 130
2020-04-03 20:12:24 C 06 20 13.10 +54 06 29.4 V 130
2020-04-03 21:50:10 C 06 20 37.99 +54 04 32.7 V A16
2020-04-03 22:05:43 C 06 20 41.45 +54 04 12.4 V A16
2020-04-03 22:21:17 C 06 20 45.77 +54 03 55.8 V A16
2020-04-03 22:34:14 C 06 20 48.94 +54 03 39.4 V A16
2020-04-04 20:06:48 n 06 26 12.03 +53 38 05.7 V Z43
2020-04-04 20:18:16 n 06 26 14.83 +53 37 52.0 V Z43
2020-04-04 20:28:50 n 06 26 17.45 +53 37 39.3 V Z43