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
2016-02-08 17:49:38 C 13 15 11.71 +56 32 32.6 o D54
2016-02-09 07:21:12 C 13 12 18.05 +56 29 35.3 R G45
2016-02-09 07:21:30 C 13 12 17.98 +56 29 35.6 R G45
2016-02-09 07:28:35 C 13 12 16.46 +56 29 34.1 R G45
2016-02-09 07:35:31 C 13 12 14.93 +56 29 32.6 R G45
2016-02-09 07:42:30 C 13 12 13.40 +56 29 31.2 R G45
2016-02-09 08:02:38 C 13 12 08.99 +56 29 27.0 R G45
2016-02-09 08:09:34 C 13 12 07.44 +56 29 25.7 R G45
2016-02-09 08:16:34 C 13 12 05.93 +56 29 24.2 R G45
2016-02-09 08:23:35 C 13 12 04.37 +56 29 22.6 R G45
2016-02-10 11:09:47 C 13 06 14.31 +56 22 27.5 q H45
2016-02-10 11:10:59 C 13 06 14.06 +56 22 27.3 q H45
2016-02-10 11:12:23 C 13 06 13.75 +56 22 26.8 q H45
2016-02-10 11:13:40 C 13 06 13.44 +56 22 26.5 q H45
2016-02-10 11:15:16 C 13 06 13.09 +56 22 25.9 q H45
2016-02-10 11:16:39 C 13 06 12.78 +56 22 25.6 q H45
2016-02-11 15:57:51 C 12 59 55.40 +56 13 09.9 q 168
2016-02-11 16:55:24 C 12 59 42.70 +56 12 51.0 q 168
2016-02-11 17:49:16 C 12 59 30.79 +56 12 33.7 q 168
2016-02-12 06:40:31 C 12 56 40.13 +56 07 58.8 R G45
2016-02-12 06:40:36 C 12 56 40.10 +56 07 58.7 R G45
2016-02-12 06:40:48 C 12 56 39.99 +56 07 59.0 R G45
2016-02-12 06:47:38 C 12 56 38.54 +56 07 56.4 R G45
2016-02-12 06:47:45 C 12 56 38.49 +56 07 56.1 R G45
2016-02-12 06:54:40 C 12 56 36.93 +56 07 53.8 R G45
2016-02-12 06:54:46 C 12 56 36.91 +56 07 53.8 R G45
2016-02-12 06:54:57 C 12 56 36.88 +56 07 53.8 R G45
2016-02-12 07:01:45 C 12 56 35.35 +56 07 51.3 R G45
2016-02-12 07:02:02 C 12 56 35.27 +56 07 51.2 R G45
2016-02-12 07:08:53 C 12 56 33.73 +56 07 49.0 R G45
2016-02-12 07:08:59 C 12 56 33.67 +56 07 48.7 R G45
2016-02-12 07:09:16 C 12 56 33.64 +56 07 48.8 R G45
2016-02-15 06:07:38 C 12 40 42.02 +55 35 16.5 R G45
2016-02-15 06:14:47 C 12 40 40.39 +55 35 12.6 R G45
2016-02-15 06:21:55 C 12 40 38.78 +55 35 09.3 R G45
2016-02-15 06:38:38 C 12 40 34.98 +55 35 00.7 R G45
2016-02-15 07:00:08 C 12 40 30.09 +55 34 49.7 R G45
2016-02-15 07:07:09 C 12 40 28.50 +55 34 46.1 R G45
2016-02-18 09:46:40 C 12 23 47.80 +54 47 57.0 q H45
2016-02-18 09:48:07 C 12 23 47.45 +54 47 55.9 q H45
2016-02-18 09:49:24 C 12 23 47.17 +54 47 55.2 q H45
2016-02-18 09:50:39 C 12 23 46.87 +54 47 54.0 q H45
2016-02-18 09:51:56 C 12 23 46.58 +54 47 53.3 q H45
2016-02-18 09:53:23 C 12 23 46.26 +54 47 52.1 q H45
2016-02-19 09:42:40 C 12 18 31.24 +54 30 11.8 q H45
2016-02-19 09:44:10 C 12 18 30.93 +54 30 10.6 q H45
2016-02-19 09:45:33 C 12 18 30.60 +54 30 09.4 q H45
2016-02-19 09:47:01 C 12 18 30.25 +54 30 08.4 q H45
2016-02-19 09:48:45 C 12 18 29.88 +54 30 07.0 q H45
2016-02-19 09:50:28 C 12 18 29.48 +54 30 05.7 q H45