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
1994-12-01 18:14:50 C 21 31 02.03 +05 59 03.1 z 540
1994-12-01 18:20:06 C 21 31 02.16 +05 59 11.5 z 540
1994-12-06 19:30:19 C 21 35 45.00 +09 21 16.1 z 587
1994-12-06 19:48:24 C 21 35 45.76 +09 21 48.1 z 587
1994-12-08 02:33:30 C 21 37 03.90 +10 12 54.9 z 670
1994-12-08 02:50:34 C 21 37 04.55 +10 13 21.7 z 670
1994-12-08 03:01:15 C 21 37 05.04 +10 13 41.3 z 670
1994-12-08 03:14:15 C 21 37 05.55 +10 14 01.5 z 670
1994-12-08 03:40:30 C 21 37 06.73 +10 14 46.4 z 670
1994-12-23 01:03:12 C 21 55 12.11 +20 06 26.1 z 816
1994-12-23 01:05:26 C 21 55 12.13 +20 06 28.9 z 816
1994-12-23 01:09:56 C 21 55 12.44 +20 06 36.5 z 816
1994-12-23 01:25:52 C 21 55 13.31 +20 07 02.7 z 816
1994-12-26 17:58:24 C 22 00 35.10 +22 33 57.3 z 104
1994-12-26 18:00:30 C 22 00 35.25 +22 34 01.3 z 104
1994-12-26 18:05:10 C 22 00 35.51 +22 34 09.1 z 104
1995-01-01 09:51:54 C 22 09 35.88 +26 20 28.2 z 385
1995-01-01 09:58:12 C 22 09 36.21 +26 20 38.1 z 385
1995-01-01 10:07:22 C 22 09 36.86 +26 20 54.0 z 385
1995-01-02 09:57:10 C 22 11 18.20 +27 00 47.3 16.9 z 897
1995-01-02 10:05:00 C 22 11 18.74 +27 01 00.6 16.8 z 897
1995-01-02 10:08:55 C 22 11 19.01 +27 01 07.8 z 897
1995-01-05 17:16:35 C 22 17 10.94 +29 14 02.3 z 540
1995-01-05 17:22:11 C 22 17 11.35 +29 14 11.7 z 540
1995-01-05 17:27:33 C 22 17 11.78 +29 14 20.5 z 540
1995-01-06 09:15:39 C 22 18 24.87 +29 41 00.1 z 897
1995-01-06 09:23:31 C 22 18 25.53 +29 41 13.9 z 897
1995-01-06 09:32:02 C 22 18 26.13 +29 41 27.3 z 897
1995-01-23 02:53:00 C 22 56 36.78 +41 07 47.2 z 658
1995-01-23 03:09:58 C 22 56 38.69 +41 08 15.7 z 658
1995-01-24 03:55:03 C 22 59 35.17 +41 51 02.9 z 658
1995-01-24 03:59:13 C 22 59 35.64 +41 51 09.9 z 658
1995-01-24 04:02:17 C 22 59 36.05 +41 51 15.4 z 658
1995-01-31 17:24:19 C 23 24 10.53 +47 04 24.8 557
1995-01-31 17:50:24 C 23 24 14.48 +47 05 09.3 557
1995-01-31 18:30:27 C 23 24 20.57 +47 06 17.3 557
1995-02-01 10:59:28 C 23 26 52.83 +47 34 33.9 z 897
1995-02-01 11:03:40 C 23 26 53.50 +47 34 40.5 z 897
1995-02-01 11:10:15 C 23 26 54.43 +47 34 52.5 z 897
1995-02-07 20:07:21 C 23 53 30.93 +51 53 05.2 z 540
1995-02-07 20:11:36 C 23 53 31.78 +51 53 11.6 z 540
1995-02-07 20:15:45 C 23 53 32.42 +51 53 18.0 z 540
1995-02-21 11:21:19 C 01 15 09.59 +59 56 23.9 z 897
1995-02-21 11:31:12 C 01 15 12.58 +59 56 35.5 z 897
1995-02-28 18:47:51 C 02 16 29.35 +62 46 35.5 z 587
1995-02-28 18:58:23 C 02 16 33.42 +62 46 42.5 z 587
1995-03-01 22:31:47 C 02 27 13.77 +63 04 31.1 z 540
1995-03-01 22:37:05 C 02 27 15.79 +63 04 33.3 z 540
1995-03-01 22:42:22 C 02 27 17.78 +63 04 36.4 z 540
1995-03-06 18:52:54 C 03 14 18.33 +63 48 45.3 z 587