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
2015-09-17 22:50:30 C 02 37 47.90 +27 53 52.6 t 073
2015-09-17 23:00:43 C 02 37 48.19 +27 54 35.8 15.0 q K90
2015-09-17 23:09:29 C 02 37 48.12 +27 55 14.1 t 073
2015-09-18 00:05:04 C 02 37 48.82 +27 59 14.2 15.0 q K90
2015-09-18 00:07:07 C 02 37 48.87 +27 59 22.1 14.9 q K90
2015-09-18 01:55:20 C 02 37 49.87 +28 07 07.0 15.0 q K90
2015-09-18 20:17:47 C 02 38 06.80 +29 26 52.3 14.9 q K90
2015-09-18 21:20:32 C 02 38 07.70 +29 31 28.1 15.0 q K90
2015-09-18 22:25:21 C 02 38 08.32 +29 36 18.0 15.0 q K90
2015-09-18 23:05:04 C 02 38 08.69 +29 39 14.7 14.9 q K90
2015-09-19 00:08:03 C 02 38 09.44 +29 43 52.3 c A24
2015-09-19 00:08:26 C 02 38 09.44 +29 43 53.9 c A24
2015-09-19 01:10:28 C 02 38 09.95 +29 48 29.5 c A24
2015-09-19 01:10:50 C 02 38 09.96 +29 48 31.1 c A24
2015-09-19 01:36:48 C 02 38 09.94 +29 50 27.4 14.9 q K90
2015-09-19 02:05:24 C 02 38 10.18 +29 52 33.3 14.9 q K90
2015-09-19 02:19:21 C 02 38 10.30 +29 53 35.2 14.8 q K90
2015-09-19 02:40:48 C 02 38 10.46 +29 55 09.6 14.9 q K90
2015-09-19 03:10:47 C 02 38 10.69 +29 57 23.2 14.9 q K90
2015-09-19 21:38:08 C 02 38 25.63 +31 20 18.9 t 073
2015-09-19 22:09:21 C 02 38 25.88 +31 22 41.6 t 073
2015-09-19 22:41:24 C 02 38 26.17 +31 25 08.6 t 073
2015-09-19 23:11:02 C 02 38 26.33 +31 27 23.3 t 073
2015-09-19 23:39:33 C 02 38 26.54 +31 29 35.0 t 073
2015-09-20 00:10:23 C 02 38 26.68 +31 31 55.4 t 073
2015-09-20 00:23:28 C 02 38 26.69 +31 32 55.1 t 073
2015-09-21 02:24:57 C 02 38 42.08 +33 33 40.9 c A24
2015-09-21 02:25:19 C 02 38 42.07 +33 33 42.6 c A24
2015-09-21 03:29:11 C 02 38 42.28 +33 38 43.3 c A24
2015-09-21 03:29:33 C 02 38 42.29 +33 38 45.0 c A24
2015-09-21 10:43:44 C 02 38 46.02 +34 13 07.3 R G45
2015-09-21 10:44:30 C 02 38 45.99 +34 13 10.9 R G45
2015-09-21 10:52:37 C 02 38 46.02 +34 13 49.5 R G45
2015-09-21 10:53:23 C 02 38 46.03 +34 13 53.1 R G45
2015-09-21 11:01:33 C 02 38 46.04 +34 14 31.7 R G45
2015-09-21 11:10:22 C 02 38 46.05 +34 15 13.8 R G45
2015-09-21 11:10:33 C 02 38 46.05 +34 15 14.7 R G45
2015-09-21 14:17:29 C 02 38 49.19 +34 30 03.1 o 300
2015-09-21 14:19:48 C 02 38 49.23 +34 30 13.7 o 300
2015-09-21 14:22:07 C 02 38 49.26 +34 30 25.0 o 300
2015-09-21 14:24:25 C 02 38 49.29 +34 30 36.3 o 300
2015-09-21 14:29:03 C 02 38 49.24 +34 30 58.4 o 300
2015-09-21 14:31:21 C 02 38 49.26 +34 31 09.6 o 300
2015-09-25 07:41:04 C 02 39 03.31 +41 57 37.7 u H21
2015-09-25 07:43:04 C 02 39 03.30 +41 57 48.3 u H21
2015-09-25 07:45:04 C 02 39 03.28 +41 57 58.7 u H21
2015-09-25 07:47:04 C 02 39 03.26 +41 58 09.2 u H21
2015-09-25 07:49:04 C 02 39 03.24 +41 58 19.6 u H21
2015-09-25 07:51:04 C 02 39 03.21 +41 58 30.1 u H21
2015-09-25 07:53:04 C 02 39 03.20 +41 58 40.5 u H21