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
2015-09-07 09:19:50 C 02 31 56.14 +12 56 03.1 u H21
2015-09-07 09:22:49 C 02 31 56.22 +12 56 11.6 u H21
2015-09-07 09:25:41 C 02 31 56.30 +12 56 19.8 u H21
2015-09-07 09:28:40 C 02 31 56.37 +12 56 28.4 u H21
2015-09-07 09:31:31 C 02 31 56.44 +12 56 36.6 u H21
2015-09-07 09:34:33 C 02 31 56.52 +12 56 45.3 u H21
2015-09-07 09:37:32 C 02 31 56.59 +12 56 53.8 u H21
2015-09-07 09:40:24 C 02 31 56.67 +12 57 02.1 u H21
2015-09-07 09:43:23 C 02 31 56.75 +12 57 10.6 u H21
2015-09-07 09:46:16 C 02 31 56.82 +12 57 18.9 u H21
2015-09-07 19:48:52 C 02 32 14.55 +13 26 22.9 q D29
2015-09-07 20:06:39 C 02 32 14.99 +13 27 14.7 q D29
2015-09-07 20:24:25 C 02 32 15.43 +13 28 06.6 q D29
2015-09-08 01:04:08 C 02 32 24.20 +13 41 43.2 q 160
2015-09-08 01:06:57 C 02 32 24.27 +13 41 51.8 q 160
2015-09-08 01:09:47 C 02 32 24.34 +13 42 00.1 q 160
2015-09-09 02:20:43 C 02 33 07.04 +14 57 38.7 c A24
2015-09-09 02:21:45 C 02 33 07.06 +14 57 41.9 c A24
2015-09-09 03:20:11 C 02 33 08.47 +15 00 41.3 c A24
2015-09-09 03:21:13 C 02 33 08.48 +15 00 44.4 c A24
2015-09-09 11:22:19 C 02 33 22.572 +15 25 38.45 L F51
2015-09-09 11:40:01 C 02 33 22.980 +15 26 33.66 L F51
2015-09-09 11:57:40 C 02 33 23.390 +15 27 28.73 L F51
2015-09-09 12:15:23 C 02 33 23.796 +15 28 24.16 L F51
2015-09-10 01:05:56 C 02 33 44.53 +16 08 45.3 q 160
2015-09-10 01:08:46 C 02 33 44.61 +16 08 54.2 q 160
2015-09-10 01:11:34 C 02 33 44.70 +16 09 03.1 q 160
2015-09-10 17:07:58 C 02 34 09.82 +17 00 32.1 o 300
2015-09-10 17:12:34 C 02 34 09.96 +17 00 46.5 o 300
2015-09-10 17:14:53 C 02 34 10.01 +17 00 53.5 o 300
2015-09-10 17:17:12 C 02 34 10.10 +17 01 02.4 o 300
2015-09-10 17:19:30 C 02 34 10.13 +17 01 09.8 o 300
2015-09-10 17:21:48 C 02 34 10.20 +17 01 16.6 o 300
2015-09-10 17:24:06 C 02 34 10.24 +17 01 24.7 o 300
2015-09-10 17:26:26 C 02 34 10.26 +17 01 32.0 o 300
2015-09-10 17:28:44 C 02 34 10.32 +17 01 39.8 o 300
2015-09-11 10:51:16 C 02 34 36.43 +17 59 18.9 R G45
2015-09-11 11:00:59 C 02 34 36.64 +17 59 51.7 R G45
2015-09-11 11:10:52 C 02 34 36.83 +18 00 24.8 R G45
2015-09-11 11:18:38 C 02 34 37.01 +18 00 50.9 R G45
2015-09-11 16:22:08 C 02 34 45.35 +18 17 56.1 o 300
2015-09-11 16:25:26 C 02 34 45.43 +18 18 07.0 o 300
2015-09-11 16:35:21 C 02 34 45.58 +18 18 41.0 o 300
2015-09-11 16:38:40 C 02 34 45.62 +18 18 52.1 o 300
2015-09-11 16:41:58 C 02 34 45.74 +18 19 03.3 o 300
2015-09-11 16:45:16 C 02 34 45.79 +18 19 15.2 o 300
2015-09-12 00:51:11 C 02 34 57.67 +18 46 53.7 q 160
2015-09-12 00:53:58 C 02 34 57.71 +18 47 02.6 q 160
2015-09-12 00:56:45 C 02 34 57.79 +18 47 12.9 q 160
2015-09-13 10:06:19 C 02 35 43.83 +20 44 30.9 R G45