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
2015-09-25 07:55:04 C 02 39 03.18 +41 58 51.0 u H21
2015-09-25 07:57:04 C 02 39 03.16 +41 59 01.3 u H21
2015-09-25 07:59:04 C 02 39 03.14 +41 59 11.8 u H21
2015-09-25 08:01:04 C 02 39 03.12 +41 59 22.3 u H21
2015-09-25 08:03:04 C 02 39 03.10 +41 59 32.7 u H21
2015-09-25 08:05:28 C 02 39 03.07 +41 59 45.2 u H21
2015-09-26 02:27:22 C 02 38 58.32 +43 36 08.9 c A24
2015-09-26 02:27:44 C 02 38 58.31 +43 36 10.8 c A24
2015-09-26 03:30:48 C 02 38 57.56 +43 41 43.3 c A24
2015-09-26 03:31:10 C 02 38 57.56 +43 41 45.3 c A24
2015-09-27 07:24:36 C 02 38 45.72 +46 10 40.4 u H21
2015-09-27 07:26:33 C 02 38 45.69 +46 10 51.0 u H21
2015-09-27 07:28:31 C 02 38 45.64 +46 11 01.5 u H21
2015-09-27 07:30:28 C 02 38 45.62 +46 11 12.3 u H21
2015-09-27 07:32:26 C 02 38 45.58 +46 11 22.9 u H21
2015-09-27 07:34:24 C 02 38 45.53 +46 11 33.2 u H21
2015-09-27 07:36:21 C 02 38 45.52 +46 11 43.9 u H21
2015-09-27 07:38:19 C 02 38 45.47 +46 11 54.5 u H21
2015-09-27 07:40:17 C 02 38 45.43 +46 12 05.0 u H21
2015-09-27 07:42:14 C 02 38 45.41 +46 12 15.6 u H21
2015-09-27 07:44:12 C 02 38 45.36 +46 12 26.2 u H21
2015-09-27 07:46:09 C 02 38 45.33 +46 12 36.7 u H21
2015-09-27 07:48:07 C 02 38 45.29 +46 12 47.3 u H21
2015-09-27 07:50:05 C 02 38 45.27 +46 12 57.9 u H21
2015-09-27 07:51:50 C 02 38 45.23 +46 13 07.3 u H21
2015-09-27 10:10:48 C 02 38 43.41 +46 25 39.1 u 926
2015-09-27 10:18:46 C 02 38 43.26 +46 26 22.2 u 926
2015-09-27 10:24:43 C 02 38 43.15 +46 26 54.1 u 926
2015-09-28 02:47:25 C 02 38 33.56 +47 55 19.3 q W19
2015-09-28 02:50:19 C 02 38 33.52 +47 55 35.2 q W19
2015-09-28 02:55:13 C 02 38 33.45 +47 56 02.1 q W19
2015-09-28 05:14:20 C 02 38 31.68 +48 08 43.9 u 926
2015-09-28 05:19:57 C 02 38 31.60 +48 09 14.6 u 926
2015-09-28 05:25:34 C 02 38 31.49 +48 09 45.7 u 926
2015-09-28 07:30:44 C 02 38 28.14 +48 21 12.0 u H21
2015-09-28 07:32:45 C 02 38 28.09 +48 21 23.0 u H21
2015-09-28 07:34:46 C 02 38 28.05 +48 21 34.0 u H21
2015-09-28 07:36:47 C 02 38 28.00 +48 21 44.9 u H21
2015-09-28 07:38:48 C 02 38 27.95 +48 21 56.0 u H21
2015-09-28 07:40:49 C 02 38 27.91 +48 22 07.0 u H21
2015-09-28 07:42:49 C 02 38 27.87 +48 22 18.0 u H21
2015-09-28 07:44:51 C 02 38 27.82 +48 22 28.9 u H21
2015-09-28 07:46:52 C 02 38 27.77 +48 22 39.9 u H21
2015-09-28 07:48:53 C 02 38 27.73 +48 22 51.0 u H21
2015-09-28 07:52:54 C 02 38 27.63 +48 23 12.9 u H21
2015-09-28 07:54:55 C 02 38 27.59 +48 23 23.9 u H21
2015-09-28 07:56:56 C 02 38 27.55 +48 23 34.9 u H21
2015-09-28 07:58:56 C 02 38 27.51 +48 23 45.7 u H21
2015-09-28 08:00:56 C 02 38 27.47 +48 23 56.5 u H21
2015-09-29 09:00:01 C 02 38 02.27 +50 40 44.3 u 926