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
2015-08-17 09:40:02 C 02 12 40.51 -03 36 31.6 u H21
2015-08-17 09:42:00 C 02 12 40.60 -03 36 29.0 u H21
2015-08-17 09:43:57 C 02 12 40.69 -03 36 26.5 u H21
2015-08-17 09:45:55 C 02 12 40.76 -03 36 23.8 u H21
2015-08-17 09:47:52 C 02 12 40.86 -03 36 21.1 u H21
2015-08-17 09:49:50 C 02 12 40.93 -03 36 18.7 u H21
2015-08-17 09:51:48 C 02 12 41.01 -03 36 16.0 u H21
2015-08-17 09:53:45 C 02 12 41.09 -03 36 13.4 u H21
2015-08-17 09:55:43 C 02 12 41.18 -03 36 10.6 u H21
2015-08-17 09:57:41 C 02 12 41.27 -03 36 08.1 u H21
2015-08-17 09:59:38 C 02 12 41.35 -03 36 05.5 u H21
2015-08-17 10:01:36 C 02 12 41.44 -03 36 02.9 u H21
2015-08-17 10:04:20 C 02 12 41.55 -03 35 59.2 u H21
2015-08-20 09:42:01 C 02 15 51.98 -01 55 59.3 u H21
2015-08-20 09:44:32 C 02 15 52.09 -01 55 55.6 u H21
2015-08-20 09:47:03 C 02 15 52.19 -01 55 51.9 u H21
2015-08-20 09:49:34 C 02 15 52.29 -01 55 48.4 u H21
2015-08-20 09:52:05 C 02 15 52.39 -01 55 44.7 u H21
2015-08-20 09:54:37 C 02 15 52.50 -01 55 40.9 u H21
2015-08-20 09:57:08 C 02 15 52.60 -01 55 37.2 u H21
2015-08-20 09:59:39 C 02 15 52.71 -01 55 33.5 u H21
2015-08-20 10:02:10 C 02 15 52.81 -01 55 29.9 u H21
2015-08-20 10:04:41 C 02 15 52.91 -01 55 26.1 u H21
2015-08-20 10:07:13 C 02 15 53.01 -01 55 22.4 u H21
2015-08-20 10:09:44 C 02 15 53.12 -01 55 18.9 u H21
2015-08-20 10:12:00 C 02 15 53.20 -01 55 15.5 u H21
2015-08-21 09:40:52 C 02 16 54.04 -01 20 15.8 u H21
2015-08-21 09:42:49 C 02 16 54.12 -01 20 12.8 u H21
2015-08-21 09:44:47 C 02 16 54.19 -01 20 09.9 u H21
2015-08-21 09:46:45 C 02 16 54.28 -01 20 06.9 u H21
2015-08-21 09:48:42 C 02 16 54.35 -01 20 03.8 u H21
2015-08-21 09:50:40 C 02 16 54.43 -01 20 00.8 u H21
2015-08-21 09:52:37 C 02 16 54.51 -01 19 57.9 u H21
2015-08-21 09:54:23 C 02 16 54.58 -01 19 55.3 u H21
2015-08-21 09:56:21 C 02 16 54.65 -01 19 52.3 u H21
2015-08-26 00:46:27 C 02 21 30.21 +01 42 15.6 q 160
2015-08-26 00:49:19 C 02 21 30.31 +01 42 20.8 q 160
2015-08-26 00:52:12 C 02 21 30.42 +01 42 26.0 q 160
2015-08-27 00:26:41 C 02 22 26.45 +02 25 11.3 q 160
2015-08-27 00:29:31 C 02 22 26.54 +02 25 16.6 q 160
2015-08-27 00:32:20 C 02 22 26.67 +02 25 21.7 q 160
2015-08-27 04:10:43 C 02 22 35.03 +02 32 11.6 o Z22
2015-08-27 04:21:16 C 02 22 35.42 +02 32 31.5 o Z22
2015-08-27 04:32:11 C 02 22 35.79 +02 32 51.3 o Z22
2015-08-28 00:10:27 C 02 23 21.84 +03 09 48.5 q 160
2015-08-28 00:13:18 C 02 23 21.96 +03 09 54.1 q 160
2015-08-28 00:16:12 C 02 23 22.05 +03 09 59.7 q 160
2015-08-28 07:24:19 C 02 23 38.45 +03 23 44.8 u H21
2015-08-28 07:26:17 C 02 23 38.52 +03 23 48.6 u H21
2015-08-28 07:28:15 C 02 23 38.60 +03 23 52.1 u H21