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
2019-11-25 05:13:23 C 21 24 58.24 -06 06 08.5 V T08
2019-11-25 05:28:47 C 21 24 58.78 -06 05 43.5 V T08
2019-11-26 15:00:44 C 21 26 15.98 -05 11 16.1 q C97
2019-11-26 15:02:54 C 21 26 16.06 -05 11 12.8 q C97
2019-11-26 15:05:04 C 21 26 16.14 -05 11 09.3 q C97
2019-11-26 15:07:16 C 21 26 16.23 -05 11 05.5 q C97
2019-11-26 17:23:24 C 21 26 21.73 -05 07 28.0 V A16
2019-11-26 17:54:00 C 21 26 22.91 -05 06 38.4 V A16
2019-11-26 18:15:15 C 21 26 23.71 -05 06 03.2 V A16
2019-11-27 02:00:10 C 21 26 41.98 -04 53 27.4 V 703
2019-11-27 02:07:44 C 21 26 42.26 -04 53 14.9 V 703
2019-11-27 02:15:19 C 21 26 42.55 -04 53 02.6 V 703
2019-11-27 02:22:54 C 21 26 42.84 -04 52 50.3 V 703
2019-11-29 05:45:50 C 21 28 48.52 -03 29 27.2 V T08
2019-11-29 05:50:33 C 21 28 48.71 -03 29 19.6 V T08
2019-11-29 05:58:37 C 21 28 49.03 -03 29 06.4 V T08
2019-11-29 06:14:37 C 21 28 49.67 -03 28 40.5 V T08
2019-11-29 17:51:09 C 21 29 19.26 -03 09 54.3 V 160
2019-11-29 17:54:36 C 21 29 19.41 -03 09 48.8 V 160
2019-11-29 17:57:47 C 21 29 19.54 -03 09 43.5 V 160
2019-11-30 15:11:56 C 21 30 14.11 -02 35 15.3 q C97
2019-11-30 15:14:07 C 21 30 14.25 -02 35 11.7 q C97
2019-11-30 15:16:18 C 21 30 14.30 -02 35 08.2 q C97
2019-11-30 15:18:31 C 21 30 14.38 -02 35 04.7 q C97
2019-11-30 16:28:24 C 21 30 17.69 -02 33 14.8 V K87
2019-11-30 16:34:56 C 21 30 17.94 -02 33 04.5 V K87
2019-11-30 16:41:27 C 21 30 18.23 -02 32 53.5 V K87
2019-12-06 02:34:55 C 21 36 16.87 +00 57 36.8 V 703
2019-12-06 02:42:35 C 21 36 17.19 +00 57 48.9 V 703
2019-12-06 02:50:15 C 21 36 17.63 +00 58 01.0 V 703
2019-12-06 02:57:55 C 21 36 18.00 +00 58 13.6 V 703
2019-12-06 14:55:24 C 21 36 53.11 +01 17 38.1 q C97
2019-12-06 14:57:35 C 21 36 53.23 +01 17 41.7 q C97
2019-12-06 14:59:47 C 21 36 53.34 +01 17 45.5 q C97
2019-12-06 15:01:58 C 21 36 53.43 +01 17 48.8 q C97
2019-12-07 05:27:17 C 21 37 36.12 +01 41 11.6 V T08
2019-12-07 05:31:18 C 21 37 36.32 +01 41 18.1 V T08
2019-12-07 05:39:21 C 21 37 36.70 +01 41 31.4 V T08
2019-12-07 05:54:01 C 21 37 37.40 +01 41 55.0 V T08
2019-12-09 05:44:37 C 21 40 02.56 +02 59 29.1 V T05
2019-12-09 05:49:54 C 21 40 02.81 +02 59 37.5 V T05
2019-12-09 05:58:32 C 21 40 03.23 +02 59 51.4 V T05
2019-12-09 06:13:56 C 21 40 04.01 +03 00 16.4 V T05
2019-12-10 18:13:58 C 21 41 56.76 +03 58 38.2 V 160
2019-12-10 18:16:43 C 21 41 56.94 +03 58 42.6 V 160
2019-12-10 18:19:35 C 21 41 57.07 +03 58 46.8 V 160
2019-12-11 04:34:12 C 21 42 29.64 +04 15 27.9 V T08
2019-12-11 04:38:50 C 21 42 29.89 +04 15 35.2 V T08
2019-12-11 04:49:27 C 21 42 30.42 +04 15 52.5 V T08
2019-12-11 05:03:43 C 21 42 31.15 +04 16 15.5 V T08