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
2012-01-04 11:59:56 C 13 30 33.44 +12 14 52.1 r 703
2012-01-10 15:46:16 C 13 32 29.455 +11 09 58.03 L F51
2012-01-10 16:02:29 C 13 32 29.564 +11 09 51.44 L F51
2012-01-14 11:51:01 C 13 32 59.23 +10 32 30.5 u 448
2012-01-14 11:56:09 C 13 32 59.23 +10 32 28.3 u 448
2012-01-14 12:01:16 C 13 32 59.25 +10 32 26.5 u 448
2012-01-14 12:07:04 C 13 32 59.25 +10 32 24.5 u 448
2012-01-14 12:12:36 C 13 32 59.24 +10 32 22.2 u 448
2012-01-21 11:04:03 C 13 32 22.98 +09 30 11.1 18.2 c 704
2012-01-21 11:22:37 C 13 32 22.77 +09 30 04.6 18.7 c 704
2012-01-21 11:41:04 C 13 32 22.58 +09 29 58.1 18.4 c 704
2012-01-21 11:59:33 C 13 32 22.34 +09 29 51.1 18.4 c 704
2012-01-21 12:18:08 C 13 32 22.12 +09 29 44.9 18.0 c 704
2012-01-25 11:18:23 C 13 31 05.59 +08 57 23.5 r 703
2012-01-25 11:28:59 C 13 31 05.37 +08 57 20.1 r 703
2012-01-25 11:39:42 C 13 31 05.19 +08 57 16.7 r 703
2012-01-25 11:50:22 C 13 31 04.98 +08 57 14.0 r 703
2012-01-26 02:05:53 C 13 30 50.01 +08 52 31.5 c A24
2012-01-26 02:22:16 C 13 30 49.69 +08 52 26.3 c A24
2012-01-26 02:39:10 C 13 30 49.36 +08 52 20.8 c A24
2012-01-26 02:55:33 C 13 30 49.03 +08 52 15.6 c A24
2012-01-26 02:57:38 C 13 30 48.97 +08 52 14.9 c A24
2012-02-17 00:21:36 C 13 10 01.94 +06 26 15.3 c A24
2012-02-17 00:22:38 C 13 10 01.86 +06 26 14.8 c A24
2012-02-20 08:06:55 C 13 04 57.82 +06 07 32.5 17.5 c 704
2012-02-20 08:24:12 C 13 04 56.62 +06 07 28.1 17.9 c 704
2012-02-20 08:41:33 C 13 04 55.46 +06 07 24.4 18.0 c 704
2012-02-20 08:58:45 C 13 04 54.29 +06 07 20.3 18.0 c 704
2012-02-20 09:15:56 C 13 04 53.11 +06 07 16.5 18.2 c 704
2012-02-20 11:34:21 C 13 04 43.60 +06 06 43.5 r 703
2012-02-20 11:45:42 C 13 04 42.88 +06 06 40.9 r 703
2012-02-20 11:57:13 C 13 04 42.06 +06 06 38.3 r 703
2012-02-20 12:08:35 C 13 04 41.30 +06 06 35.8 r 703
2012-02-23 03:52:58 C 13 00 17.98 +05 52 01.4 c A24
2012-02-23 03:54:00 C 13 00 17.91 +05 52 01.2 c A24
2012-02-23 04:46:57 C 13 00 14.07 +05 51 49.1 c A24
2012-02-23 04:47:59 C 13 00 13.97 +05 51 49.4 c A24
2012-02-25 02:26:32 C 12 56 55.83 +05 41 34.6 c A24
2012-02-25 02:27:34 C 12 56 55.74 +05 41 34.3 c A24
2012-02-25 10:30:48 C 12 56 19.93 +05 39 47.8 r 703
2012-02-25 10:38:54 C 12 56 19.28 +05 39 46.1 r 703
2012-02-25 10:47:11 C 12 56 18.67 +05 39 44.4 r 703
2012-02-25 10:55:18 C 12 56 18.02 +05 39 42.1 r 703
2012-02-26 01:43:20 C 12 55 11.70 +05 36 22.9 u C73
2012-02-26 01:46:48 C 12 55 11.46 +05 36 22.4 u C73
2012-02-26 03:19:02 C 12 55 04.52 +05 36 02.3 c A24
2012-02-26 03:20:03 C 12 55 04.44 +05 36 02.2 c A24
2012-02-26 22:59:10 C 12 53 35.19 +05 31 40.4 r 168
2012-02-26 23:56:52 C 12 53 30.75 +05 31 27.6 r 168
2012-03-02 06:36:27 C 12 45 25.88 +05 09 02.3 17.6 c 704