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
2012-04-15 04:33:52 C 11 27 59.43 +01 16 41.0 r 703
2012-04-15 04:41:14 C 11 27 59.07 +01 16 39.4 r 703
2012-04-19 05:51:14 C 11 23 54.31 +00 54 01.0 r G96
2012-04-19 05:59:14 C 11 23 53.98 +00 53 59.1 r G96
2012-04-19 06:07:08 C 11 23 53.66 +00 53 57.2 r G96
2012-04-19 06:15:04 C 11 23 53.37 +00 53 55.2 r G96
2012-04-20 06:04:31 C 11 22 59.58 +00 48 19.2 17.7 c 704
2012-04-20 06:20:11 C 11 22 58.96 +00 48 15.8 18.2 c 704
2012-04-20 06:35:58 C 11 22 58.36 +00 48 12.0 18.1 c 704
2012-04-20 06:51:40 C 11 22 57.77 +00 48 08.2 18.3 c 704
2012-04-20 07:07:26 C 11 22 57.14 +00 48 04.0 18.1 c 704
2012-04-24 04:41:27 C 11 19 48.88 +00 25 54.5 19.2 c 704
2012-04-24 05:13:27 C 11 19 47.88 +00 25 46.7 19.0 c 704
2012-04-24 05:28:53 C 11 19 47.44 +00 25 41.9 19.3 c 704
2012-04-29 02:58:16 C 11 16 41.02 -00 02 37.2 u 448
2012-04-29 03:08:53 C 11 16 40.85 -00 02 39.7 u 448
2012-04-29 03:18:50 C 11 16 40.61 -00 02 42.1 u 448
2012-04-30 03:16:36 C 11 16 09.22 -00 08 31.2 r 703
2012-04-30 03:28:58 C 11 16 08.83 -00 08 35.8 r 703
2012-04-30 03:41:22 C 11 16 08.58 -00 08 38.3 r 703
2012-04-30 03:53:47 C 11 16 08.32 -00 08 42.3 r 703
2015-05-29 09:29:07 C 00 19 24.12 -25 20 57.9 q W98
2015-05-29 09:43:06 C 00 19 25.09 -25 20 51.2 q W98
2015-05-29 09:57:04 C 00 19 26.02 -25 20 44.2 q W98
2015-06-29 08:04:49 S 01 07 51.970 -19 13 12.72 L C51
2015-06-29 14:22:33 S 01 08 15.406 -19 09 47.70 L C51
2015-06-29 14:22:44 S 01 08 15.430 -19 09 47.81 L C51
2015-07-08 21:58:10 S 01 21 55.426 -17 03 39.89 L C51
2015-07-11 09:11:11 C 01 25 27.74 -16 28 09.9 18.1 W95
2015-07-11 09:30:53 C 01 25 28.88 -16 27 57.9 17.9 W95
2015-07-11 09:50:35 C 01 25 30.01 -16 27 46.1 18.1 W95
2015-07-11 10:10:18 C 01 25 31.16 -16 27 34.2 18.1 W95
2015-07-24 04:43:26 C 01 43 09.04 -13 03 43.4 o Z22
2015-07-24 04:55:18 C 01 43 09.61 -13 03 34.7 o Z22
2015-07-24 05:05:38 C 01 43 10.19 -13 03 26.3 o Z22
2015-07-25 07:56:09 C 01 44 39.27 -12 43 24.4 q W98
2015-07-25 08:19:37 C 01 44 40.57 -12 43 06.5 q W98
2015-07-25 08:52:15 C 01 44 42.29 -12 42 42.5 q W98
2015-07-28 04:53:00 C 01 48 25.26 -11 50 20.3 o Z22
2015-07-28 05:05:41 C 01 48 25.94 -11 50 09.9 o Z22
2015-08-12 09:29:01 C 02 07 05.07 -06 04 44.4 u H21
2015-08-12 09:31:32 C 02 07 05.19 -06 04 41.5 u H21
2015-08-12 09:34:03 C 02 07 05.30 -06 04 38.6 u H21
2015-08-12 09:36:34 C 02 07 05.42 -06 04 35.8 u H21
2015-08-12 09:38:58 C 02 07 05.53 -06 04 33.0 u H21
2015-08-12 09:41:52 C 02 07 05.67 -06 04 29.8 u H21
2015-08-17 09:32:12 C 02 12 40.17 -03 36 41.9 u H21
2015-08-17 09:34:09 C 02 12 40.26 -03 36 39.4 u H21
2015-08-17 09:36:07 C 02 12 40.35 -03 36 36.8 u H21
2015-08-17 09:38:04 C 02 12 40.43 -03 36 34.2 u H21