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
2016-03-24 09:08:43 C 10 23 37.32 +36 34 56.4 L T05
2016-03-24 09:43:22 C 10 23 35.13 +36 34 06.9 L T05
2016-03-24 10:04:29 C 10 23 33.90 +36 33 35.7 L T05
2016-03-24 10:38:21 C 10 23 31.75 +36 32 47.0 L T05
2016-03-26 03:29:27 C 10 21 15.17 +35 34 33.0 u H21
2016-03-26 03:31:25 C 10 21 15.04 +35 34 30.4 u H21
2016-03-26 03:33:23 C 10 21 14.93 +35 34 27.7 u H21
2016-03-26 03:35:20 C 10 21 14.85 +35 34 24.7 u H21
2016-03-26 03:37:18 C 10 21 14.74 +35 34 22.0 u H21
2016-03-26 03:39:15 C 10 21 14.60 +35 34 19.4 u H21
2016-03-26 03:41:13 C 10 21 14.50 +35 34 16.5 u H21
2016-03-26 03:43:11 C 10 21 14.39 +35 34 13.8 u H21
2016-03-26 03:45:08 C 10 21 14.30 +35 34 11.0 u H21
2016-03-26 03:47:06 C 10 21 14.19 +35 34 08.3 u H21
2016-03-26 03:49:03 C 10 21 14.05 +35 34 05.2 u H21
2016-03-26 03:51:01 C 10 21 13.96 +35 34 02.5 u H21
2016-03-26 03:52:59 C 10 21 13.83 +35 33 59.7 u H21
2016-03-26 03:54:56 C 10 21 13.74 +35 33 56.9 u H21
2016-03-26 03:56:54 C 10 21 13.63 +35 33 54.1 u H21
2016-03-26 03:59:21 C 10 21 13.50 +35 33 50.7 u H21
2016-03-26 22:38:34 C 10 20 15.74 +35 07 34.8 q 160
2016-03-26 22:40:51 C 10 20 15.65 +35 07 31.3 q 160
2016-03-26 22:43:06 C 10 20 15.52 +35 07 28.5 q 160
2016-03-31 03:47:26 C 10 15 53.17 +32 48 59.9 q 703
2016-03-31 04:03:56 C 10 15 52.57 +32 48 38.1 q 703
2016-03-31 04:12:34 C 10 15 52.23 +32 48 26.6 q 703
2016-03-31 04:21:14 C 10 15 51.88 +32 48 14.9 q 703
2016-04-01 05:06:28 C 10 14 59.19 +32 15 20.7 q H45
2016-04-01 05:07:51 C 10 14 59.12 +32 15 18.8 q H45
2016-04-01 05:09:11 C 10 14 59.08 +32 15 17.1 q H45
2016-04-01 05:10:24 C 10 14 59.04 +32 15 15.5 q H45
2016-04-01 05:11:38 C 10 14 58.99 +32 15 13.9 q H45
2016-04-01 05:12:46 C 10 14 58.95 +32 15 12.3 q H45
2016-04-01 09:15:15 C 10 14 50.79 +32 09 54.8 L T05
2016-04-01 09:50:17 C 10 14 49.54 +32 09 08.0 L T05
2016-04-01 09:52:32 C 10 14 49.47 +32 09 05.8 L T05
2016-04-01 10:07:09 C 10 14 48.98 +32 08 45.4 L T05
2016-04-01 10:18:02 C 10 14 48.55 +32 08 31.4 L T05
2016-04-05 21:04:01 C 10 11 53.73 +29 51 47.2 q 160
2016-04-05 21:06:19 C 10 11 53.69 +29 51 44.7 q 160
2016-04-05 21:08:36 C 10 11 53.63 +29 51 42.2 q 160
2016-04-06 21:35:10 C 10 11 23.49 +29 21 32.0 q 160
2016-04-06 21:37:28 C 10 11 23.42 +29 21 28.9 q 160
2016-04-06 21:39:45 C 10 11 23.36 +29 21 25.7 q 160
2016-04-07 04:30:35 C 10 11 15.60 +29 13 04.5 q H45
2016-04-07 04:32:11 C 10 11 15.58 +29 13 02.6 q H45
2016-04-07 04:33:31 C 10 11 15.53 +29 13 00.7 q H45
2016-04-07 04:34:56 C 10 11 15.50 +29 12 59.1 q H45
2016-04-07 04:36:25 C 10 11 15.50 +29 12 57.3 q H45
2016-04-07 04:37:46 C 10 11 15.46 +29 12 55.3 q H45