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
2015-10-25 19:50:00 C 16 22 41.44 +80 57 48.2 q K30
2015-10-25 20:05:43 C 16 22 35.34 +80 57 04.9 q K30
2015-10-27 17:50:56 C 16 08 37.07 +78 57 08.2 q C03
2015-10-27 17:52:54 C 16 08 36.52 +78 57 03.0 q C03
2015-10-27 17:56:09 C 16 08 35.89 +78 56 54.5 q C03
2015-11-01 03:34:47 S 15 52 04.049 +74 47 55.90 L C51
2015-11-01 06:43:39 S 15 51 45.005 +74 41 06.79 L C51
2015-11-01 08:18:05 S 15 51 35.640 +74 37 42.92 L C51
2015-11-01 13:01:23 S 15 51 08.141 +74 27 34.38 L C51
2015-11-01 14:35:49 S 15 50 59.16 +74 24 12.8 L C51
2015-11-01 16:10:15 S 15 50 50.27 +74 20 51.4 L C51
2015-11-01 17:44:41 S 15 50 41.46 +74 17 30.5 L C51
2015-11-01 19:19:07 S 15 50 32.774 +74 14 10.46 L C51
2015-11-01 20:53:33 S 15 50 24.161 +74 10 50.56 L C51
2015-11-01 22:27:59 S 15 50 15.65 +74 07 31.4 L C51
2015-11-02 00:02:26 S 15 50 07.21 +74 04 12.6 L C51
2015-11-02 01:36:52 S 15 49 58.86 +74 00 54.2 L C51
2015-11-02 04:45:43 S 15 49 42.41 +73 54 19.1 L C51
2015-11-02 06:20:09 S 15 49 34.28 +73 51 02.2 L C51
2015-11-02 07:54:35 S 15 49 26.28 +73 47 45.9 L C51
2015-11-02 09:29:01 S 15 49 18.34 +73 44 30.0 L C51
2015-11-02 12:37:53 S 15 49 02.717 +73 37 59.63 L C51
2015-12-01 04:20:26 C 15 30 34.87 +59 09 44.7 c A24
2015-12-01 04:21:28 C 15 30 34.87 +59 09 44.6 c A24
2015-12-01 04:29:40 C 15 30 34.76 +59 09 38.9 c A24
2015-12-01 04:30:43 C 15 30 34.75 +59 09 37.7 c A24
2015-12-16 20:55:05 C 15 24 07.15 +55 59 40.1 o D54
2015-12-16 21:06:57 C 15 24 06.91 +55 59 37.1 o D54
2015-12-16 21:17:21 C 15 24 06.69 +55 59 33.3 o D54
2015-12-29 23:19:28 S 15 13 46.51 +55 01 48.9 L C51
2015-12-30 05:37:12 S 15 13 29.59 +55 01 29.2 L C51
2015-12-30 07:11:38 S 15 13 25.28 +55 01 24.8 L C51
2015-12-30 10:20:30 S 15 13 16.72 +55 01 15.6 L C51
2015-12-30 13:29:11 S 15 13 08.07 +55 01 07.0 L C51
2015-12-30 15:03:37 S 15 13 03.74 +55 01 02.9 L C51
2015-12-30 16:38:03 S 15 12 59.36 +55 00 59.0 L C51
2015-12-30 18:12:29 S 15 12 55.01 +55 00 55.0 L C51
2015-12-30 19:46:56 S 15 12 50.63 +55 00 51.4 L C51
2015-12-30 21:21:22 S 15 12 46.234 +55 00 47.77 L C51
2015-12-30 22:55:48 S 15 12 41.842 +55 00 44.24 L C51
2015-12-31 00:30:14 S 15 12 37.41 +55 00 40.9 L C51
2015-12-31 02:04:40 S 15 12 32.98 +55 00 37.7 L C51
2015-12-31 05:13:21 S 15 12 24.04 +55 00 31.4 L C51
2015-12-31 06:47:47 S 15 12 19.57 +55 00 28.4 L C51
2015-12-31 08:22:13 S 15 12 15.07 +55 00 26.0 L C51
2015-12-31 14:39:57 S 15 11 56.93 +55 00 15.6 L C51
2016-01-02 10:43:33 S 15 09 43.322 +54 59 55.14 L C51
2016-01-02 10:43:45 S 15 09 43.339 +54 59 55.18 L C51
2016-01-02 13:52:26 S 15 09 33.353 +54 59 56.98 L C51
2016-01-02 17:01:18 S 15 09 23.258 +54 59 59.21 L C51