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
2016-08-15 13:44:50 S 15 59 11.77 -38 55 10.9 L C51
2016-08-15 15:19:05 S 15 59 32.58 -38 55 41.9 L C51
2016-08-15 16:53:31 S 15 59 53.44 -38 56 12.4 L C51
2016-08-15 18:27:46 S 16 00 14.29 -38 56 42.4 L C51
2016-08-15 20:02:12 S 16 00 35.203 -38 57 12.38 L C51
2016-08-15 21:36:27 S 16 00 56.006 -38 57 42.34 L C51
2016-08-15 23:10:53 S 16 01 16.930 -38 58 12.40 L C51
2016-08-16 00:45:08 S 16 01 37.82 -38 58 41.7 L C51
2016-08-16 02:19:34 S 16 01 58.74 -38 59 10.9 L C51
2016-08-16 03:53:49 S 16 02 19.61 -38 59 40.5 L C51
2016-08-16 07:02:31 S 16 03 01.57 -39 00 37.5 L C51
2016-08-16 08:36:56 S 16 03 22.49 -39 01 06.3 L C51
2016-08-16 10:11:12 S 16 03 43.43 -39 01 34.3 L C51
2016-08-16 11:45:38 S 16 04 04.47 -39 02 02.5 L C51
2016-08-16 13:19:53 S 16 04 25.42 -39 02 29.7 L C51
2016-08-16 16:28:34 S 16 05 07.44 -39 03 24.8 L C51
2016-08-16 18:03:00 S 16 05 28.50 -39 03 52.2 L C51
2016-08-16 19:37:15 S 16 05 49.531 -39 04 18.66 L C51
2016-08-16 21:11:30 S 16 06 10.574 -39 04 45.05 L C51
2016-08-16 21:11:41 S 16 06 10.644 -39 04 45.48 L C51
2016-08-17 00:20:11 S 16 06 52.69 -39 05 37.6 L C51
2016-08-17 00:20:22 S 16 06 52.76 -39 05 37.7 L C51
2016-08-17 01:54:37 S 16 07 13.85 -39 06 03.5 L C51
2016-08-17 03:28:52 S 16 07 34.88 -39 06 29.6 L C51
2016-08-17 03:29:03 S 16 07 34.95 -39 06 30.1 L C51
2016-08-17 05:03:18 S 16 07 56.02 -39 06 55.2 L C51
2016-08-17 11:20:40 S 16 09 20.580 -39 08 33.79 L C51
2016-08-17 12:54:55 S 16 09 41.882 -39 08 59.46 L C51
2016-08-17 14:29:21 S 16 10 02.97 -39 09 23.8 L C51
2016-08-17 16:03:36 S 16 10 24.149 -39 09 47.16 L C51
2016-08-17 17:38:02 S 16 10 45.37 -39 10 11.2 L C51
2016-08-17 19:12:17 S 16 11 06.49 -39 10 33.9 L C51
2016-08-17 20:46:43 S 16 11 27.790 -39 10 58.01 L C51
2016-08-17 23:55:24 S 16 12 10.258 -39 11 43.98 L C51
2016-08-18 03:04:06 S 16 12 52.79 -39 12 28.5 L C51
2016-08-18 04:38:21 S 16 13 14.05 -39 12 50.7 L C51
2016-08-18 07:47:02 S 16 13 56.61 -39 13 33.8 L C51
2016-08-18 09:21:28 S 16 14 18.01 -39 13 55.7 L C51
2016-08-18 12:29:57 S 16 15 00.59 -39 14 37.7 L C51
2016-08-18 12:30:08 S 16 15 00.63 -39 14 38.3 L C51
2016-08-18 15:38:38 S 16 15 43.229 -39 15 19.51 L C51
2016-08-18 15:38:49 S 16 15 43.226 -39 15 20.63 L C51
2016-08-18 17:13:05 S 16 16 04.66 -39 15 39.5 L C51
2016-08-18 18:47:19 S 16 16 26.04 -39 15 59.7 L C51
2016-08-18 18:47:31 S 16 16 26.02 -39 15 59.4 L C51
2016-08-18 20:21:45 S 16 16 47.362 -39 16 19.60 L C51
2016-08-19 01:04:41 S 16 17 51.53 -39 17 17.6 L C51
2016-08-19 02:39:08 S 16 18 12.97 -39 17 36.2 L C51
2016-08-19 04:13:23 S 16 18 34.351 -39 17 54.85 L C51
2016-08-19 05:47:49 S 16 18 55.84 -39 18 13.1 L C51