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
2019-12-13 04:37:07 C 21 45 05.45 +05 33 29.7 V T05
2019-12-13 04:41:46 C 21 45 05.70 +05 33 37.2 V T05
2019-12-13 04:53:12 C 21 45 06.29 +05 33 55.7 V T05
2019-12-13 05:09:18 C 21 45 07.15 +05 34 22.0 V T05
2019-12-15 05:32:01 C 21 47 49.14 +06 53 02.3 V T08
2019-12-15 05:36:41 C 21 47 49.39 +06 53 09.7 V T08
2019-12-15 05:44:46 C 21 47 49.84 +06 53 22.7 V T08
2019-12-15 06:02:24 C 21 47 50.82 +06 53 51.8 V T08
2019-12-19 04:37:30 C 21 53 22.80 +09 28 02.9 V T08
2019-12-19 04:42:09 C 21 53 23.07 +09 28 10.6 V T08
2019-12-19 04:50:09 C 21 53 23.53 +09 28 23.5 V T08
2019-12-19 05:06:14 C 21 53 24.47 +09 28 49.8 V T08
2019-12-20 01:35:20 C 21 54 39.11 +10 02 16.4 V 703
2019-12-20 01:43:33 C 21 54 39.59 +10 02 29.7 V 703
2019-12-20 01:51:45 C 21 54 40.08 +10 02 43.0 V 703
2019-12-20 01:59:58 C 21 54 40.55 +10 02 56.5 V 703
2019-12-22 15:08:47 C 21 58 28.78 +11 43 05.4 q C97
2019-12-22 15:10:59 C 21 58 28.94 +11 43 08.0 q C97
2019-12-22 15:13:09 C 21 58 29.10 +11 43 11.8 q C97
2019-12-22 15:15:21 C 21 58 29.22 +11 43 16.3 q C97
2019-12-23 18:15:16 C 22 00 12.92 +12 27 30.4 V 160
2019-12-23 18:18:09 C 22 00 13.11 +12 27 35.5 V 160
2019-12-23 18:21:01 C 22 00 13.29 +12 27 40.1 V 160
2019-12-25 18:39:51 C 22 03 23.06 +13 47 07.7 V 160
2019-12-25 18:42:23 C 22 03 23.22 +13 47 11.6 V 160
2019-12-25 18:44:55 C 22 03 23.38 +13 47 15.8 V 160
2019-12-29 17:18:33 C 22 09 51.87 +16 23 30.5 q 160
2019-12-29 17:21:35 C 22 09 52.07 +16 23 35.3 q 160
2019-12-29 17:24:33 C 22 09 52.27 +16 23 40.2 q 160
2019-12-30 17:31:08 C 22 11 34.97 +17 03 39.9 V 160
2019-12-30 17:34:00 C 22 11 35.22 +17 03 45.0 V 160
2019-12-30 17:36:51 C 22 11 35.42 +17 03 49.3 V 160
2020-01-03 02:40:05 C 22 17 32.41 +19 18 49.7 V 703
2020-01-03 02:47:56 C 22 17 33.00 +19 19 02.7 V 703
2020-01-03 02:55:47 C 22 17 33.60 +19 19 15.1 V 703
2020-01-03 03:03:39 C 22 17 34.17 +19 19 29.0 V 703
2020-01-06 01:58:00 C 22 23 02.53 +21 18 15.1 V 703
2020-01-06 02:05:31 C 22 23 03.13 +21 18 27.9 V 703
2020-01-06 02:13:03 C 22 23 03.70 +21 18 40.6 V 703
2020-01-06 02:20:33 C 22 23 04.28 +21 18 52.9 V 703
2020-01-06 17:04:26 C 22 24 14.70 +21 43 37.8 V A16
2020-01-06 17:15:00 C 22 24 15.55 +21 43 55.6 V A16
2020-01-06 17:25:33 C 22 24 16.35 +21 44 13.2 V A16
2020-01-06 17:36:04 C 22 24 17.19 +21 44 30.8 V A16
2020-01-06 17:44:06 C 22 24 17.73 +21 44 43.8 V 160
2020-01-06 17:46:38 C 22 24 18.00 +21 44 48.5 V A16
2020-01-06 17:46:55 C 22 24 17.96 +21 44 48.5 V 160
2020-01-06 17:49:46 C 22 24 18.19 +21 44 53.1 V 160
2020-01-06 17:57:09 C 22 24 18.84 +21 45 05.8 V A16
2020-01-07 00:06:47 C 22 24 48.30 +21 55 28.2 V W34