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
2015-08-28 07:30:12 C 02 23 38.67 +03 23 56.1 u H21
2015-08-28 07:32:10 C 02 23 38.73 +03 23 59.8 u H21
2015-08-28 07:34:08 C 02 23 38.81 +03 24 03.8 u H21
2015-08-28 07:36:05 C 02 23 38.87 +03 24 07.6 u H21
2015-08-28 07:38:03 C 02 23 38.95 +03 24 11.5 u H21
2015-08-28 07:40:00 C 02 23 39.01 +03 24 15.0 u H21
2015-08-28 07:41:58 C 02 23 39.09 +03 24 18.8 u H21
2015-08-28 07:43:56 C 02 23 39.14 +03 24 22.6 u H21
2015-08-28 07:45:53 C 02 23 39.22 +03 24 26.6 u H21
2015-08-28 07:47:51 C 02 23 39.29 +03 24 30.5 u H21
2015-08-28 07:49:49 C 02 23 39.37 +03 24 34.2 u H21
2015-08-28 07:51:46 C 02 23 39.44 +03 24 37.9 u H21
2015-08-28 07:53:44 C 02 23 39.51 +03 24 41.6 u H21
2015-08-28 07:55:41 C 02 23 39.58 +03 24 45.5 u H21
2015-08-28 07:57:39 C 02 23 39.64 +03 24 49.3 u H21
2015-08-28 07:59:37 C 02 23 39.72 +03 24 53.2 u H21
2015-08-28 08:01:34 C 02 23 39.78 +03 24 57.0 u H21
2015-08-28 08:03:32 C 02 23 39.85 +03 25 00.9 u H21
2015-08-28 08:05:30 C 02 23 39.92 +03 25 04.6 u H21
2015-08-28 08:07:39 C 02 23 40.00 +03 25 09.0 u H21
2015-08-29 01:42:16 C 02 24 20.11 +03 59 41.0 q 160
2015-08-29 01:45:07 C 02 24 20.21 +03 59 46.7 q 160
2015-08-29 01:47:57 C 02 24 20.31 +03 59 52.3 q 160
2015-08-30 00:02:14 C 02 25 10.54 +04 44 58.1 q 160
2015-08-30 00:05:04 C 02 25 10.59 +04 45 03.6 q 160
2015-08-30 00:07:53 C 02 25 10.73 +04 45 09.8 q 160
2015-08-31 00:25:57 C 02 26 04.25 +05 36 18.0 q 160
2015-08-31 00:28:45 C 02 26 04.35 +05 36 24.0 q 160
2015-08-31 00:31:34 C 02 26 04.44 +05 36 30.0 q 160
2015-09-01 00:25:09 C 02 26 56.03 +06 28 45.8 q 160
2015-09-01 00:28:01 C 02 26 56.11 +06 28 52.0 q 160
2015-09-01 00:30:51 C 02 26 56.20 +06 28 58.5 q 160
2015-09-04 09:25:17 C 02 29 41.48 +09 41 47.2 u H21
2015-09-04 09:27:15 C 02 29 41.54 +09 41 52.4 u H21
2015-09-04 09:29:12 C 02 29 41.59 +09 41 57.2 u H21
2015-09-04 09:31:10 C 02 29 41.65 +09 42 02.3 u H21
2015-09-04 09:33:08 C 02 29 41.71 +09 42 07.1 u H21
2015-09-04 09:35:05 C 02 29 41.77 +09 42 12.0 u H21
2015-09-04 09:37:03 C 02 29 41.82 +09 42 17.4 u H21
2015-09-04 09:39:00 C 02 29 41.88 +09 42 22.1 u H21
2015-09-04 09:40:58 C 02 29 41.94 +09 42 27.1 u H21
2015-09-04 09:42:56 C 02 29 41.99 +09 42 32.2 u H21
2015-09-07 01:59:31 C 02 31 43.15 +12 35 06.8 c A24
2015-09-07 02:00:33 C 02 31 43.17 +12 35 10.1 c A24
2015-09-07 09:02:32 C 02 31 55.70 +12 55 13.5 u H21
2015-09-07 09:05:25 C 02 31 55.77 +12 55 21.7 u H21
2015-09-07 09:08:06 C 02 31 55.84 +12 55 29.4 u H21
2015-09-07 09:10:57 C 02 31 55.91 +12 55 37.6 u H21
2015-09-07 09:13:57 C 02 31 55.99 +12 55 46.2 u H21
2015-09-07 09:16:49 C 02 31 56.07 +12 55 54.4 u H21