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
2015-09-29 09:05:39 C 02 38 02.08 +50 41 15.2 u 926
2015-09-29 09:11:16 C 02 38 01.93 +50 41 46.2 u 926
2015-09-29 22:57:42 02 37 45.35 +51 57 23.5 o Z80
2015-09-29 23:00:15 02 37 45.34 +51 57 38.1 o Z80
2015-09-30 08:58:55 C 02 37 29.08 +52 52 51.8 u H21
2015-09-30 09:01:22 C 02 37 29.02 +52 53 05.3 u H21
2015-09-30 09:04:19 C 02 37 28.90 +52 53 21.4 u H21
2015-09-30 09:09:36 C 02 37 28.72 +52 53 50.5 u H21
2015-10-01 23:37:44 C 02 36 18.41 +56 26 41.7 14.8 q 089
2015-10-01 23:40:04 C 02 36 18.31 +56 26 54.6 14.9 q 089
2015-10-01 23:42:24 C 02 36 18.19 +56 27 07.2 14.8 q 089
2015-10-01 23:44:44 C 02 36 18.08 +56 27 20.3 14.8 q 089
2015-10-01 23:47:04 C 02 36 17.97 +56 27 33.2 14.8 q 089
2015-10-01 23:49:24 C 02 36 17.82 +56 27 46.2 14.9 q 089
2015-10-01 23:51:44 C 02 36 17.86 +56 27 59.2 14.9 q 089
2015-10-01 23:54:04 C 02 36 17.76 +56 28 12.1 14.7 q 089
2015-10-01 23:59:29 C 02 36 17.44 +56 28 42.1 14.8 q 089
2015-10-02 00:01:49 C 02 36 17.24 +56 28 55.0 14.9 q 089
2015-10-02 07:11:31 C 02 36 01.50 +57 08 35.6 u H21
2015-10-02 07:13:52 C 02 36 01.38 +57 08 48.7 u H21
2015-10-02 07:15:49 C 02 36 01.29 +57 08 59.5 u H21
2015-10-02 07:17:24 C 02 36 01.22 +57 09 08.2 u H21
2015-10-02 07:19:45 C 02 36 01.10 +57 09 21.2 u H21
2015-10-02 07:21:19 C 02 36 01.02 +57 09 29.9 u H21
2015-10-02 07:23:28 C 02 36 00.91 +57 09 41.8 u H21
2015-10-06 21:12:12 C 02 28 57.45 +67 06 31.1 S K14
2015-10-06 21:21:34 C 02 28 56.45 +67 07 20.8 S K14
2015-10-06 21:33:38 C 02 28 55.18 +67 08 25.1 S K14
2015-10-06 21:41:12 C 02 28 54.31 +67 09 05.5 S K14
2015-10-06 21:53:24 C 02 28 53.04 +67 10 11.2 S K14
2015-10-08 02:47:54 C 02 25 37.97 +69 40 58.3 q W19
2015-10-08 02:52:45 C 02 25 37.33 +69 41 23.6 q W19
2015-10-08 02:58:10 C 02 25 36.64 +69 41 52.2 q W19
2015-10-08 03:02:51 C 02 25 35.94 +69 42 16.6 q W19
2015-10-08 03:07:28 C 02 25 35.30 +69 42 40.6 q W19
2015-10-08 03:12:11 C 02 25 34.67 +69 43 05.2 q W19
2015-10-08 03:18:46 C 02 25 33.76 +69 43 39.7 q W19
2015-10-08 03:23:24 C 02 25 33.15 +69 44 03.9 q W19
2015-10-09 22:20:56 C 02 18 48.29 +73 20 49.1 m 006
2015-10-09 22:26:30 C 02 18 47.13 +73 21 17.1 m 006
2015-10-09 22:29:00 C 02 18 46.59 +73 21 29.1 m 006
2015-10-09 22:33:29 C 02 18 45.76 +73 21 51.8 m 006
2015-10-09 22:38:47 C 02 18 44.59 +73 22 17.9 m 006
2015-10-09 22:43:39 C 02 18 43.64 +73 22 42.2 m 006
2015-10-12 19:04:56 C 01 59 37.48 +78 44 24.7 S K14
2015-10-12 19:18:46 C 01 59 31.84 +78 45 27.5 S K14
2015-10-12 19:30:35 C 01 59 26.98 +78 46 21.1 S K14
2015-10-12 19:40:15 C 01 59 22.98 +78 47 05.2 S K14
2015-10-12 19:48:14 C 01 59 19.63 +78 47 41.6 S K14
2015-10-25 19:34:02 C 16 22 47.69 +80 58 32.1 q K30