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
1995-03-06 19:06:27 C 03 14 23.71 +63 48 47.7 z 587
1995-03-11 18:40:25 C 04 03 46.44 +63 38 21.7 z 540
1995-03-11 18:42:52 C 04 03 47.25 +63 38 20.5 z 540
1995-03-11 18:45:49 C 04 03 48.37 +63 38 20.3 z 540
1995-03-26 04:29:13 C 06 05 42.86 +58 38 23.8 z 816
1995-03-26 04:33:48 C 06 05 44.19 +58 38 18.1 z 816
1995-03-26 04:35:53 C 06 05 44.76 +58 38 15.4 z 816
1995-03-26 04:41:27 C 06 05 46.37 +58 38 08.3 z 816
1995-04-01 00:01:42 C 06 42 02.46 +55 28 06.2 z 801
1995-04-01 00:05:29 C 06 42 03.36 +55 28 00.3 z 801
1995-04-01 00:15:22 C 06 42 05.66 +55 27 46.6 z 801
1995-04-01 00:19:16 C 06 42 06.60 +55 27 41.0 z 801
1995-04-01 11:05:36 C 06 44 37.69 +55 12 13.5 z 897
1995-04-01 11:13:05 C 06 44 39.59 +55 12 00.5 z 897
1995-04-01 11:22:58 C 06 44 41.80 +55 11 46.2 z 897
1995-04-03 00:22:59 C 06 53 04.95 +54 17 58.2 z 801
1995-04-03 00:27:14 C 06 53 05.88 +54 17 52.1 z 801
1995-04-05 04:07:18 C 07 04 07.05 +53 01 33.7 z 658
1995-04-05 04:11:15 C 07 04 07.85 +53 01 27.9 z 658
1995-04-05 04:24:54 C 07 04 10.85 +53 01 05.8 z 658
1995-04-06 05:36:19 C 07 09 17.00 +52 23 31.1 658
1995-04-06 05:39:50 C 07 09 17.72 +52 23 25.6 658
1995-04-06 05:42:49 C 07 09 18.26 +52 23 21.1 658
1995-04-20 10:50:49 C 08 05 03.77 +43 55 46.4 z 897
1995-04-20 10:57:18 C 08 05 04.59 +43 55 37.4 z 897
1995-04-20 11:07:10 C 08 05 05.99 +43 55 23.1 z 897
1995-04-21 06:51:00 C 08 07 43.91 +43 26 55.0 658
1995-04-21 06:56:00 C 08 07 44.60 +43 26 47.4 658
1995-04-21 07:00:02 C 08 07 45.16 +43 26 41.2 658
1995-04-23 13:25:30 C 08 14 46.09 +42 09 10.3 z 360
1995-04-23 13:29:29 C 08 14 46.58 +42 09 03.9 z 360
1995-04-23 13:33:29 C 08 14 47.04 +42 08 58.5 z 360
1996-02-29 17:19:01 C 14 27 25.17 -37 26 31.0 413
1996-02-29 17:26:52 C 14 27 25.04 -37 26 32.2 413
1996-02-29 17:34:14 C 14 27 24.95 -37 26 37.1 413
1996-03-26 18:38:12 C 14 05 52.88 -40 18 28.3 413
1996-03-26 18:47:32 C 14 05 52.41 -40 18 30.0 413
1996-03-27 13:28:18 C 14 04 58.75 -40 21 40.0 413
1996-03-27 13:33:43 C 14 04 58.48 -40 21 41.0 413
1996-05-26 14:13:03 C 12 55 42.65 -37 55 30.1 413
1996-05-28 11:42:55 C 12 54 32.87 -37 43 52.4 413
1996-05-28 11:47:31 C 12 54 32.78 -37 43 50.4 413
1998-08-10 14:07:46 C 22 17 47.98 -62 45 00.4 422
1998-08-10 14:12:02 C 22 17 47.59 -62 45 00.9 422
1998-08-13 12:00:23 C 22 09 45.11 -62 53 52.0 422
1998-08-13 12:02:43 C 22 09 44.68 -62 53 52.6 422
1998-08-13 12:04:51 C 22 09 44.70 -62 53 54.6 422
1998-08-16 16:15:56 C 22 00 34.44 -62 57 34.0 426
1998-08-16 16:32:33 C 22 00 32.59 -62 57 34.3 426
1998-08-16 16:49:13 C 22 00 30.55 -62 57 34.2 426