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
2016-03-13 08:52:06 C 14 10 35.73 -10 26 12.8 R G45
2016-03-13 12:49:58 C 14 10 37.169 -10 27 02.04 L F51
2016-03-13 13:07:52 C 14 10 37.233 -10 27 05.92 L F51
2016-03-13 13:25:42 C 14 10 37.295 -10 27 09.74 L F51
2016-03-13 13:43:37 C 14 10 37.358 -10 27 13.59 L F51
2016-03-14 01:08:49 C 14 10 41.47 -10 29 43.7 o 461
2016-03-14 01:24:33 C 14 10 41.49 -10 29 47.0 o 461
2016-03-14 01:40:14 C 14 10 41.58 -10 29 50.5 o 461
2016-03-21 09:53:00 C 14 10 37.90 -11 06 36.6 o 926
2016-03-21 10:20:12 C 14 10 37.67 -11 06 42.6 o 926
2016-03-21 10:47:35 C 14 10 37.42 -11 06 48.2 o 926
2016-03-31 05:37:21 C 14 07 04.11 -11 53 57.0 q H15
2016-03-31 05:51:12 C 14 07 03.71 -11 53 59.9 q H15
2016-03-31 06:06:19 C 14 07 03.31 -11 54 03.2 q H15
2016-03-31 09:40:58 C 14 06 57.47 -11 54 45.3 q 703
2016-03-31 09:49:37 C 14 06 57.27 -11 54 46.8 q 703
2016-03-31 09:58:15 C 14 06 56.99 -11 54 48.8 q 703
2016-03-31 10:06:54 C 14 06 56.78 -11 54 50.7 q 703
2016-03-31 10:48:18 C 14 06 55.61 -11 54 58.6 R G45
2016-03-31 10:56:01 C 14 06 55.39 -11 54 59.9 R G45
2016-03-31 10:56:41 C 14 06 55.37 -11 55 00.1 R G45
2016-03-31 11:03:39 C 14 06 55.17 -11 55 01.6 R G45
2016-03-31 11:04:19 C 14 06 55.16 -11 55 01.6 R G45
2016-03-31 11:11:08 C 14 06 54.98 -11 55 03.0 R G45
2016-03-31 11:11:49 C 14 06 54.97 -11 55 03.2 R G45
2016-04-02 07:07:06 C 14 05 45.91 -12 03 42.9 R G45
2016-04-02 07:12:29 C 14 05 45.73 -12 03 44.2 R G45
2016-04-02 07:19:02 C 14 05 45.53 -12 03 45.8 R G45
2016-04-02 07:25:56 C 14 05 45.31 -12 03 47.1 R G45
2016-04-02 07:32:17 C 14 05 45.12 -12 03 48.4 R G45
2016-04-02 07:34:22 C 14 05 45.12 -12 03 48.3 o 691
2016-04-02 08:01:10 C 14 05 44.27 -12 03 53.6 o 691
2016-04-02 08:27:56 C 14 05 43.41 -12 03 58.7 o 691
2016-04-02 13:12:04 C 14 05 34.95 -12 04 52.7 L T05
2016-04-02 13:45:54 C 14 05 33.88 -12 04 58.9 L T05
2016-04-02 14:19:53 C 14 05 32.77 -12 05 05.6 L T05
2016-04-02 14:54:06 C 14 05 31.67 -12 05 11.8 L T05
2016-04-05 07:05:23 C 14 03 31.57 -12 17 50.3 R G45
2016-04-05 07:06:56 C 14 03 31.48 -12 17 51.1 R G45
2016-04-05 07:07:02 C 14 03 31.46 -12 17 51.3 R G45
2016-04-05 07:12:22 C 14 03 31.19 -12 17 53.4 R G45
2016-04-05 07:13:49 C 14 03 31.21 -12 17 52.7 R G45
2016-04-05 07:18:49 C 14 03 31.07 -12 17 53.6 R G45
2016-04-05 07:20:16 C 14 03 30.98 -12 17 54.1 R G45
2016-04-05 07:20:22 C 14 03 30.96 -12 17 53.9 R G45
2016-04-05 07:25:07 C 14 03 30.86 -12 17 53.5 R G45
2016-04-05 07:25:14 C 14 03 30.79 -12 17 55.0 R G45
2016-04-05 07:26:35 C 14 03 30.73 -12 17 55.4 R G45
2016-04-05 07:31:52 C 14 03 30.55 -12 17 56.2 R G45
2016-04-05 07:31:58 C 14 03 30.55 -12 17 56.5 R G45