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
1991-03-18 06:54:44 A 10 57 44.48 +34 34 21.0 16.5 675
1991-03-18 07:38:00 A 10 57 39.92 +34 33 27.2 675
1991-04-09 04:48:59 A 10 26 53.03 +24 34 06.6 17.2 675
1991-04-09 05:26:00 A 10 26 52.02 +24 33 28.0 675
1991-04-11 05:01:00 A 10 25 40.32 +23 45 01.4 675
1991-04-11 05:41:15 A 10 25 39.16 +23 44 18.8 675
1994-10-09 04:50:59 A 21 45 47.28 -31 34 41.8 16.5 675
1994-10-09 05:28:00 A 21 45 44.10 -31 33 45.2 675
1994-10-10 04:51:44 A 21 43 48.83 -30 54 55.5 675
1994-10-10 05:35:00 A 21 43 45.48 -30 53 45.0 675
1994-10-10 09:57:36 A 21 43 24.77 -30 46 14.9 413
1994-10-10 11:27:36 A 21 43 17.09 -30 43 40.1 413
1994-10-11 03:50:44 C 21 42 00.84 -30 16 28.5 z 670
1994-10-11 04:00:45 C 21 42 00.34 -30 16 12.1 z 670
1994-10-11 04:08:49 C 21 41 59.57 -30 15 58.8 z 670
1994-10-11 04:17:15 C 21 41 58.74 -30 15 42.4 z 670
1994-10-11 04:33:15 C 21 41 57.50 -30 15 17.0 z 670
1994-10-11 14:37:35 21 41 10.93 -29 58 01.0 413
1994-10-11 18:55:11 C 21 40 52.45 -29 50 59.8 046
1994-10-11 18:57:03 C 21 40 52.31 -29 50 56.4 046
1994-10-12 03:02:59 C 21 40 16.62 -29 37 09.7 z 670
1994-10-12 03:18:30 C 21 40 15.41 -29 36 42.1 z 670
1994-10-12 03:33:00 C 21 40 14.37 -29 36 20.2 z 670
1994-10-12 03:49:00 C 21 40 12.99 -29 35 50.2 z 670
1994-10-12 04:16:00 C 21 40 11.14 -29 35 07.5 z 670
1994-10-13 07:44:18 C 21 38 13.47 -28 47 58.4 c 608
1994-10-13 08:24:32 C 21 38 10.55 -28 46 48.8 c 608
1994-10-13 08:52:02 C 21 38 08.56 -28 46 01.3 c 608
1994-10-14 10:14:59 C 21 36 26.91 -28 02 05.7 z 360
1994-10-14 10:18:59 C 21 36 26.64 -28 01 58.7 z 360
1994-10-14 10:23:59 C 21 36 26.28 -28 01 49.9 z 360
1994-10-23 12:19:29 C 21 25 26.01 -21 33 03.9 z 360
1994-10-23 12:26:00 C 21 25 25.72 -21 32 51.7 z 360
1994-10-29 03:04:45 A 21 21 35.89 -17 28 39.5 17.0 675
1994-10-29 03:51:00 A 21 21 34.73 -17 27 18.1 675
1994-10-29 18:57:11 C 21 21 16.51 -16 59 52.4 z 587
1994-10-29 19:03:30 C 21 21 16.36 -16 59 40.9 z 587
1994-10-29 19:12:09 C 21 21 16.19 -16 59 24.8 z 587
1994-10-30 10:33:44 C 21 20 59.19 -16 31 34.7 z 360
1994-10-30 10:38:00 C 21 20 59.11 -16 31 27.0 z 360
1994-11-01 02:39:59 A 21 20 21.61 -15 19 01.1 675
1994-11-01 03:19:15 A 21 20 21.01 -15 17 47.3 675
1994-11-02 02:02:18 C 21 20 04.24 -14 36 51.1 z 689
1994-11-07 23:18:49 C 21 19 23.51 -10 23 44.6 z 801
1994-11-07 23:31:35 C 21 19 23.41 -10 23 22.8 z 801
1994-11-11 11:08:37 C 21 19 46.71 -07 55 08.3 413
1994-11-11 11:11:17 C 21 19 46.72 -07 55 03.6 413
1994-11-24 10:01:44 C 21 25 25.59 +01 02 07.2 z 360
1994-11-24 10:06:29 C 21 25 25.71 +01 02 15.1 z 360
1994-12-01 18:09:24 C 21 31 01.79 +05 58 53.3 z 540