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
2016-07-08 20:05:39 S 13 32 46.560 -28 17 01.57 L C51
2016-07-08 20:05:50 S 13 32 46.632 -28 17 02.04 L C51
2016-07-08 21:40:05 S 13 32 55.908 -28 18 19.04 L C51
2016-07-09 00:48:47 S 13 33 14.56 -28 20 54.0 L C51
2016-07-09 02:23:02 S 13 33 23.88 -28 22 11.4 L C51
2016-07-09 03:57:28 S 13 33 33.27 -28 23 29.3 L C51
2016-07-09 05:31:43 S 13 33 42.76 -28 24 46.2 L C51
2016-07-09 07:06:09 S 13 33 52.22 -28 26 03.7 L C51
2016-07-09 08:40:24 S 13 34 01.53 -28 27 21.8 L C51
2016-07-09 10:14:50 S 13 34 11.03 -28 28 39.6 L C51
2016-07-09 11:49:05 S 13 34 20.47 -28 29 56.7 L C51
2016-07-09 14:57:46 S 13 34 39.50 -28 32 32.9 L C51
2016-07-09 18:06:27 S 13 34 58.598 -28 35 08.12 L C51
2016-07-09 21:15:08 S 13 35 17.830 -28 37 43.28 L C51
2016-07-10 00:23:49 S 13 35 36.994 -28 40 19.31 L C51
2016-07-10 03:32:30 S 13 35 56.352 -28 42 55.66 L C51
2016-07-10 06:41:11 S 13 36 15.766 -28 45 31.21 L C51
2016-07-10 09:49:52 S 13 36 35.287 -28 48 07.27 L C51
2016-07-16 05:46:02 S 13 52 24.48 -30 44 56.9 L C51
2016-07-16 08:54:43 S 13 52 47.68 -30 47 35.0 L C51
2016-07-16 12:03:24 S 13 53 10.98 -30 50 13.2 L C51
2016-07-16 15:12:05 S 13 53 34.34 -30 52 51.2 L C51
2016-07-16 18:20:46 S 13 53 57.80 -30 55 30.3 L C51
2016-07-17 00:38:08 S 13 54 44.90 -31 00 46.2 L C51
2016-07-17 03:46:49 S 13 55 08.56 -31 03 22.7 L C51
2016-07-17 06:55:30 S 13 55 32.33 -31 06 01.7 L C51
2016-07-17 13:12:52 S 13 56 20.11 -31 11 18.0 L C51
2016-07-17 16:21:33 S 13 56 44.17 -31 13 56.0 L C51
2016-07-17 17:55:48 S 13 56 56.23 -31 15 14.5 L C51
2016-07-17 19:30:14 S 13 57 08.239 -31 16 34.00 L C51
2016-07-17 21:04:29 S 13 57 20.326 -31 17 52.80 L C51
2016-07-17 22:38:55 S 13 57 32.462 -31 19 11.60 L C51
2016-07-18 00:13:10 S 13 57 44.561 -31 20 30.66 L C51
2016-07-18 01:47:26 S 13 57 56.69 -31 21 49.1 L C51
2016-07-18 03:21:51 S 13 58 08.830 -31 23 08.63 L C51
2016-07-18 04:56:07 S 13 58 21.04 -31 24 27.1 L C51
2016-07-18 06:30:33 S 13 58 33.25 -31 25 45.9 L C51
2016-07-18 08:04:48 S 13 58 45.47 -31 27 05.8 L C51
2016-07-18 09:39:14 S 13 58 57.73 -31 28 23.4 L C51
2016-07-18 11:13:29 S 13 59 10.01 -31 29 41.2 L C51
2016-07-18 12:47:55 S 13 59 22.30 -31 31 01.3 L C51
2016-07-18 15:56:36 S 13 59 46.93 -31 33 39.3 L C51
2016-07-18 17:30:51 S 13 59 59.29 -31 34 57.4 L C51
2016-07-18 19:05:17 S 14 00 11.683 -31 36 18.29 L C51
2016-07-18 20:39:32 S 14 00 24.043 -31 37 35.72 L C51
2016-07-18 22:13:58 S 14 00 36.454 -31 38 54.74 L C51
2016-07-19 01:22:39 S 14 01 01.42 -31 41 31.6 L C51
2016-07-19 04:31:20 S 14 01 26.45 -31 44 08.7 L C51
2016-07-19 07:39:50 S 14 01 51.41 -31 46 45.5 L C51
2016-07-19 07:40:01 S 14 01 51.42 -31 46 47.0 L C51