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
2016-02-29 04:52:25 C 11 30 55.48 +50 30 49.9 R G45
2016-02-29 04:53:23 C 11 30 55.31 +50 30 48.8 R G45
2016-02-29 04:59:38 C 11 30 54.15 +50 30 41.2 R G45
2016-02-29 05:01:17 C 11 30 53.85 +50 30 39.2 R G45
2016-02-29 05:16:08 C 11 30 51.15 +50 30 21.4 R G45
2016-03-01 11:13:31 C 11 25 32.20 +49 52 40.6 L T05
2016-03-01 11:29:41 C 11 25 29.33 +49 52 19.6 L T05
2016-03-01 12:06:58 C 11 25 22.68 +49 51 31.9 L T05
2016-03-01 12:38:19 C 11 25 17.11 +49 50 51.4 L T05
2016-03-02 10:00:53 C 11 21 37.59 +49 23 01.0 q H45
2016-03-02 10:02:09 C 11 21 37.36 +49 22 59.2 q H45
2016-03-02 10:03:29 C 11 21 37.13 +49 22 57.4 q H45
2016-03-02 10:04:35 C 11 21 36.95 +49 22 55.9 q H45
2016-03-02 10:05:47 C 11 21 36.74 +49 22 54.2 q H45
2016-03-02 10:06:53 C 11 21 36.55 +49 22 52.8 q H45
2016-03-02 10:31:08 C 11 21 33.33 +49 22 26.0 L T05
2016-03-02 11:07:01 C 11 21 27.11 +49 21 38.8 L T05
2016-03-02 11:39:01 C 11 21 21.59 +49 20 56.8 L T05
2016-03-02 12:11:46 C 11 21 15.92 +49 20 13.6 L T05
2016-03-03 04:10:43 C 11 18 37.67 +48 58 57.2 R G45
2016-03-03 04:18:03 C 11 18 36.39 +48 58 47.4 R G45
2016-03-03 04:25:14 C 11 18 35.24 +48 58 38.0 R G45
2016-03-03 04:32:19 C 11 18 34.03 +48 58 28.7 R G45
2016-03-03 04:32:31 C 11 18 34.01 +48 58 28.3 R G45
2016-03-03 04:32:36 C 11 18 33.97 +48 58 28.2 R G45
2016-03-03 04:39:50 C 11 18 32.77 +48 58 18.7 R G45
2016-03-03 04:40:02 C 11 18 32.78 +48 58 18.5 R G45
2016-03-03 04:40:08 C 11 18 32.74 +48 58 18.4 R G45
2016-03-11 10:08:27 C 10 50 39.84 +44 16 33.0 L T05
2016-03-11 10:39:44 C 10 50 36.05 +44 15 46.8 L T05
2016-03-11 10:47:00 C 10 50 35.11 +44 15 36.0 L T05
2016-03-11 11:21:28 C 10 50 30.95 +44 14 44.2 L T05
2016-03-13 21:20:07 C 10 44 03.20 +42 47 58.8 o Z22
2016-03-13 21:31:41 C 10 44 01.92 +42 47 41.3 o Z22
2016-03-13 21:45:24 C 10 44 00.43 +42 47 21.1 o Z22
2016-03-15 03:09:03 C 10 41 00.07 +42 03 11.3 R G45
2016-03-15 03:16:52 C 10 40 59.28 +42 02 59.6 R G45
2016-03-15 03:24:44 C 10 40 58.48 +42 02 47.9 R G45
2016-03-15 03:32:29 C 10 40 57.69 +42 02 36.3 R G45
2016-03-15 08:46:40 C 10 40 25.66 +41 54 42.9 q H45
2016-03-15 08:48:29 C 10 40 25.49 +41 54 41.0 q H45
2016-03-15 08:49:50 C 10 40 25.35 +41 54 38.5 q H45
2016-03-15 08:51:31 C 10 40 25.18 +41 54 35.7 q H45
2016-03-15 08:53:02 C 10 40 25.02 +41 54 34.0 q H45
2016-03-15 08:55:20 C 10 40 24.81 +41 54 30.3 q H45
2016-03-16 14:20:54 C 10 37 37.72 +41 10 21.7 q D29
2016-03-16 14:52:50 C 10 37 34.69 +41 09 34.1 q D29
2016-03-16 15:24:46 C 10 37 31.64 +41 08 46.1 q D29
2016-03-17 08:04:37 C 10 36 00.97 +40 43 45.2 q H45
2016-03-17 08:05:49 C 10 36 00.86 +40 43 43.5 q H45