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
2019-10-29 02:41:20 C 21 13 02.67 -23 56 25.0 V 703
2019-10-29 02:49:36 C 21 13 02.59 -23 56 11.5 V 703
2019-10-29 02:57:51 C 21 13 02.43 -23 55 57.4 V 703
2019-10-29 06:44:10 C 21 13 01.05 -23 49 40.7 V T05
2019-10-29 06:52:13 C 21 13 00.99 -23 49 27.3 V T05
2019-10-29 07:08:13 C 21 13 00.85 -23 49 00.8 V T05
2019-10-30 02:53:12 C 21 12 54.96 -23 16 04.6 o W92
2019-10-30 03:00:39 C 21 12 55.00 -23 15 51.9 o W92
2019-10-31 06:20:02 C 21 12 51.13 -22 30 43.1 V T08
2019-10-31 06:24:55 C 21 12 51.11 -22 30 34.9 V T08
2019-10-31 06:34:52 C 21 12 51.07 -22 30 18.4 V T08
2019-10-31 06:52:28 C 21 12 51.00 -22 29 48.9 V T08
2019-11-02 02:12:47 C 21 12 52.97 -21 17 56.2 V G96
2019-11-02 02:20:14 C 21 12 52.97 -21 17 43.9 V G96
2019-11-02 02:27:41 C 21 12 52.97 -21 17 31.6 V G96
2019-11-02 02:35:07 C 21 12 52.97 -21 17 19.2 V G96
2019-11-02 08:27:16 C 21 12 53.83 -21 07 23.1 q E89
2019-11-02 08:44:20 C 21 12 53.74 -21 06 56.4 q E89
2019-11-02 08:53:59 C 21 12 53.84 -21 06 38.8 q E89
2019-11-02 09:03:41 C 21 12 53.85 -21 06 22.9 q E89
2019-11-06 17:48:25 C 21 13 40.52 -18 13 01.0 V C95
2019-11-06 17:51:51 C 21 13 40.55 -18 12 55.2 V C95
2019-11-06 17:55:17 C 21 13 40.58 -18 12 49.2 V C95
2019-11-06 17:58:43 C 21 13 40.63 -18 12 44.2 V C95
2019-11-07 08:00:04 C 21 13 50.22 -17 49 28.5 V T05
2019-11-07 08:04:43 C 21 13 50.26 -17 49 21.0 V T05
2019-11-07 08:14:43 C 21 13 50.37 -17 49 03.8 V T05
2019-11-07 08:30:24 C 21 13 50.61 -17 48 38.1 V T05
2019-11-08 07:22:20 C 21 14 08.96 -17 10 50.5 V T08
2019-11-08 07:33:39 C 21 14 09.10 -17 10 31.8 V T08
2019-11-08 07:37:52 C 21 14 09.18 -17 10 24.3 V T08
2019-11-08 07:52:38 C 21 14 09.35 -17 10 00.2 V T08
2019-11-09 00:49:51 C 21 14 24.78 -16 42 03.1 u H21
2019-11-09 00:51:36 C 21 14 24.80 -16 42 00.2 u H21
2019-11-09 00:53:40 C 21 14 24.82 -16 41 56.5 u H21
2019-11-09 00:55:45 C 21 14 24.86 -16 41 53.4 u H21
2019-11-09 00:57:49 C 21 14 24.88 -16 41 50.0 u H21
2019-11-09 00:59:53 C 21 14 24.91 -16 41 46.6 u H21
2019-11-09 01:01:57 C 21 14 24.93 -16 41 42.8 u H21
2019-11-09 01:04:01 C 21 14 24.96 -16 41 39.6 u H21
2019-11-09 01:06:05 C 21 14 25.00 -16 41 36.2 u H21
2019-11-09 01:08:09 C 21 14 25.03 -16 41 32.7 u H21
2019-11-09 01:10:16 C 21 14 25.05 -16 41 29.5 u H21
2019-11-09 01:12:30 C 21 14 25.09 -16 41 25.7 u H21
2019-11-09 01:15:09 C 21 14 25.11 -16 41 21.2 u H21
2019-11-09 02:20:11 C 21 14 26.18 -16 39 33.2 V 703
2019-11-09 02:26:32 C 21 14 26.25 -16 39 22.4 V 703
2019-11-09 02:32:54 C 21 14 26.34 -16 39 12.3 V 703
2019-11-09 02:39:15 C 21 14 26.44 -16 39 01.7 V 703
2019-11-09 06:17:53 C 21 14 29.73 -16 32 59.0 V T08