168378 (1997 ET30)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4495441615 ± 7.44e-09
Semi-major axis (a)2.1369590145 AU ± 4.33e-09
Inclination (i)6.81171260° ± 2.15e-06
Long. of Asc. Node (Ω)23.20967142° ± 6.26e-06
Arg. of Perihelion (ω)263.36106272° ± 7.07e-06
Mean Anomaly (M)352.56084806° ± 4.46e-06
Mean Motion (n)0.3155135296°/day ± 9.58e-10
Perihelion dist (q)1.17630157 AU ± 1.61e-08
Aphelion dist (Q)3.09761646 AU ± 1.71e-08
Orbital Period3.12387962 yr ± 9.49e-09
Physical Parameters
H (abs. magnitude)16.91
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.025″
Uncertainty0
Orbit TypeAmor
MOID0.203992 AU
Observations Used877
Gaia Obs Used30
Oppositions19
Arc Total1988-2016
First Observation Used1988-09-14
Last Observation Used2025-04-23
Observations (1241)
Date Type RA Dec Mag Band Observatory
2016-04-27 08:51:28 C 13 36 05.61 -14 05 18.6 R G45
2016-04-27 08:51:45 C 13 36 05.60 -14 05 18.6 R G45
2016-04-27 08:59:16 C 13 36 05.09 -14 05 20.2 R G45
2016-04-27 08:59:22 C 13 36 05.09 -14 05 19.9 R G45
2016-04-27 08:59:30 C 13 36 05.11 -14 05 19.9 u 926
2016-04-27 09:06:56 C 13 36 04.57 -14 05 21.6 R G45
2016-04-27 09:07:02 C 13 36 04.57 -14 05 22.0 R G45
2016-04-27 09:14:36 C 13 36 04.06 -14 05 23.0 R G45
2016-04-27 09:14:42 C 13 36 04.04 -14 05 22.8 R G45
2016-04-27 09:20:51 C 13 36 03.66 -14 05 24.3 u 926
2016-04-27 09:22:19 C 13 36 03.53 -14 05 24.9 R G45
2016-04-27 11:22:21 C 13 35 56.04 -14 05 49.1 L T05
2016-04-27 11:43:03 C 13 35 54.64 -14 05 53.2 L T05
2016-04-27 12:01:29 C 13 35 53.33 -14 05 57.7 L T05
2016-04-27 12:17:42 C 13 35 52.27 -14 06 01.0 L T05
2016-04-29 11:20:22 C 13 32 49.40 -14 16 27.1 L T05
2016-04-29 11:40:48 C 13 32 47.96 -14 16 31.6 L T05
2016-04-29 11:59:31 C 13 32 46.68 -14 16 35.8 L T05
2016-04-29 12:17:40 C 13 32 45.43 -14 16 39.4 L T05
2016-04-30 07:00:46 C 13 31 32.65 -14 20 56.8 q 703
2016-04-30 07:06:40 C 13 31 32.25 -14 20 58.2 q 703
2016-04-30 07:12:35 C 13 31 31.91 -14 20 59.4 q 703
2016-04-30 07:18:29 C 13 31 31.56 -14 21 00.5 q 703
2016-04-30 23:35:44 C 13 30 28.79 -14 24 23.5 L W84
2016-04-30 23:40:16 C 13 30 28.48 -14 24 24.6 L W84
2016-04-30 23:44:49 C 13 30 28.18 -14 24 25.6 L W84
2016-04-30 23:49:21 C 13 30 27.87 -14 24 26.7 L W84
2016-04-30 23:53:53 C 13 30 27.56 -14 24 27.8 L W84
2016-05-01 08:58:55 C 13 29 51.116 -14 26 49.60 L F51
2016-05-01 09:15:43 C 13 29 49.932 -14 26 53.46 L F51
2016-05-01 09:32:31 C 13 29 48.751 -14 26 57.30 L F51
2016-05-01 11:25:35 C 13 29 40.80 -14 27 22.9 L T05
2016-05-01 11:43:35 C 13 29 39.58 -14 27 27.0 L T05
2016-05-01 12:01:37 C 13 29 38.30 -14 27 30.8 L T05
2016-05-01 12:18:14 C 13 29 37.16 -14 27 34.3 L T05
2016-05-02 11:21:24 C 13 28 06.92 -14 32 55.8 L T05
2016-05-02 11:47:01 C 13 28 05.11 -14 33 01.6 L T05
2016-05-02 12:10:59 C 13 28 03.45 -14 33 06.7 L T05
2016-05-02 12:35:02 C 13 28 01.83 -14 33 11.8 L T05
2016-05-03 09:53:37 C 13 26 39.02 -14 38 14.5 L T05
2016-05-03 10:08:09 C 13 26 37.97 -14 38 17.9 L T05
2016-05-03 10:10:24 C 13 26 37.82 -14 38 18.4 L T05
2016-05-03 10:24:50 C 13 26 36.81 -14 38 21.8 L T05
2016-05-03 10:26:57 C 13 26 36.65 -14 38 22.1 L T05
2016-05-03 10:41:19 C 13 26 35.69 -14 38 25.6 L T05
2016-05-03 10:43:31 C 13 26 35.53 -14 38 26.0 L T05
2016-05-03 10:57:50 C 13 26 34.52 -14 38 29.4 L T05
2016-05-04 04:02:54 C 13 25 28.91 -14 42 36.3 u 926
2016-05-04 04:28:44 C 13 25 27.12 -14 42 42.7 u 926
2016-05-04 04:56:53 C 13 25 25.17 -14 42 49.5 u 926