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
2020-01-28 01:58:35 C 23 14 35.31 +36 20 31.2 V 703
2020-01-28 02:06:57 C 23 14 36.32 +36 20 45.6 V 703
2020-01-28 02:15:19 C 23 14 37.31 +36 21 00.1 V 703
2020-01-28 02:23:41 C 23 14 38.37 +36 21 14.7 V 703
2020-01-28 05:31:24 C 23 15 01.29 +36 26 40.2 V T05
2020-01-28 05:34:26 C 23 15 01.66 +36 26 45.3 V T05
2020-01-28 05:40:07 C 23 15 02.35 +36 26 55.0 V T05
2020-01-28 05:51:25 C 23 15 03.72 +36 27 14.4 V T05
2020-01-29 22:48:10 C 23 20 12.15 +37 37 57.7 q I15
2020-01-29 22:50:15 C 23 20 12.39 +37 38 01.4 q I15
2020-01-29 22:52:21 C 23 20 12.64 +37 38 05.1 q I15
2020-01-31 02:01:08 C 23 23 44.19 +38 24 57.5 V 703
2020-01-31 02:08:51 C 23 23 45.21 +38 25 11.0 V 703
2020-01-31 02:16:33 C 23 23 46.17 +38 25 23.6 V 703
2020-01-31 02:24:14 C 23 23 47.22 +38 25 37.1 V 703
2020-02-03 05:31:38 C 23 34 06.04 +40 34 58.2 V T08
2020-02-03 05:36:28 C 23 34 06.73 +40 35 06.5 V T08
2020-02-03 05:44:26 C 23 34 07.86 +40 35 20.0 V T08
2020-02-03 06:03:10 C 23 34 10.52 +40 35 51.7 V T08
2020-02-05 05:23:52 C 23 41 07.95 +41 56 55.2 V T05
2020-02-05 05:28:31 C 23 41 08.64 +41 57 03.2 V T05
2020-02-05 05:35:13 C 23 41 09.65 +41 57 14.5 V T05
2020-02-05 05:40:01 C 23 41 10.38 +41 57 22.5 V T05
2020-02-05 05:47:20 C 23 41 11.47 +41 57 34.9 V T05
2020-02-05 05:49:20 C 23 41 11.76 +41 57 38.1 V T05
2020-02-05 06:05:27 C 23 41 14.18 +41 58 05.3 V T05
2020-02-08 19:05:07 C 23 54 43.55 +44 22 01.7 V A16
2020-02-08 19:15:52 C 23 54 45.39 +44 22 19.6 V A16
2020-02-08 19:26:35 C 23 54 47.15 +44 22 36.7 V A16
2020-02-08 19:37:18 C 23 54 48.90 +44 22 54.5 V A16
2020-02-08 19:48:01 C 23 54 50.67 +44 23 11.3 V A16
2020-02-08 19:58:46 C 23 54 52.53 +44 23 30.6 V A16
2020-02-17 20:14:36 C 00 36 11.98 +50 12 25.6 o L52
2020-02-17 20:25:56 C 00 36 14.36 +50 12 43.9 o L52
2020-02-18 22:29:53 C 00 42 00.80 +50 52 11.5 o Z22
2020-02-18 22:41:51 C 00 42 03.29 +50 52 27.0 o Z22
2020-02-27 05:27:30 C 01 32 46.39 +55 21 28.2 V T08
2020-02-27 05:31:57 C 01 32 47.65 +55 21 33.5 V T08
2020-02-27 05:40:34 C 01 32 50.09 +55 21 43.4 V T08
2020-02-27 05:57:20 C 01 32 54.87 +55 22 02.7 V T08
2020-03-06 06:54:59 C 02 33 42.38 +58 23 46.3 V T08
2020-03-06 06:59:07 C 02 33 43.79 +58 23 48.8 V T08
2020-03-06 07:06:41 C 02 33 46.33 +58 23 53.7 V T08
2020-03-06 07:22:59 C 02 33 51.91 +58 24 04.4 V T08
2020-03-12 20:44:57 n 03 29 40.97 +59 30 23.9 V Z43
2020-03-12 21:09:54 n 03 29 50.01 +59 30 27.3 V Z43
2020-03-16 20:46:49 n 04 04 33.66 +59 29 59.1 V Z43
2020-03-16 21:16:51 n 04 04 44.50 +59 29 53.5 V Z43
2020-03-16 21:34:31 n 04 04 50.85 +59 29 50.2 V Z43
2020-03-16 21:53:21 n 04 04 57.66 +59 29 46.8 V Z43