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
2019-04-07 09:47:17 C 11 31 04.08 +08 02 31.4 V T08
2019-04-07 10:00:11 C 11 31 03.28 +08 02 33.6 V T08
2019-04-07 10:13:50 C 11 31 02.50 +08 02 34.0 V T08
2019-04-07 10:27:52 C 11 31 01.68 +08 02 36.0 V T08
2019-04-09 06:04:18 C 11 28 37.05 +08 07 13.0 V 703
2019-04-09 06:11:51 C 11 28 36.64 +08 07 13.0 V 703
2019-04-09 06:19:23 C 11 28 36.14 +08 07 13.7 V 703
2019-04-09 06:26:57 C 11 28 35.76 +08 07 15.3 V 703
2019-04-09 09:56:58 C 11 28 24.21 +08 07 37.0 V T05
2019-04-09 10:10:08 C 11 28 23.54 +08 07 38.5 V T05
2019-04-09 10:23:18 C 11 28 22.76 +08 07 39.7 V T05
2019-04-09 10:36:25 C 11 28 21.99 +08 07 41.0 V T05
2019-04-11 06:36:39 C 11 26 01.43 +08 11 26.0 V G96
2019-04-11 06:44:08 C 11 26 01.04 +08 11 26.5 V G96
2019-04-11 06:51:37 C 11 26 00.62 +08 11 27.1 V G96
2019-04-11 06:59:06 C 11 26 00.21 +08 11 27.6 V G96
2019-04-13 04:13:53 C 11 23 41.86 +08 14 26.5 V 703
2019-04-13 04:22:09 C 11 23 41.37 +08 14 26.8 V 703
2019-04-13 04:30:25 C 11 23 40.93 +08 14 27.2 V 703
2019-04-13 04:38:42 C 11 23 40.45 +08 14 27.7 V 703
2019-04-22 05:52:33 C 11 14 14.46 +08 15 26.8 V 703
2019-04-22 06:00:12 C 11 14 14.20 +08 15 27.1 V 703
2019-04-22 06:07:51 C 11 14 13.92 +08 15 25.7 V 703
2019-04-22 06:15:30 C 11 14 13.63 +08 15 26.7 V 703
2019-04-24 06:00:31 C 11 12 34.937 +08 12 40.53 U F51
2019-04-24 06:17:34 C 11 12 34.340 +08 12 39.31 U F51
2019-04-24 06:34:35 C 11 12 33.735 +08 12 38.15 U F51
2019-04-25 06:14:44 C 11 11 48.378 +08 10 50.70 U F51
2019-04-25 06:31:55 C 11 11 47.801 +08 10 49.35 U F51
2019-04-25 06:49:03 C 11 11 47.226 +08 10 47.97 U F51
2019-04-25 07:06:14 C 11 11 46.650 +08 10 46.57 U F51
2019-04-27 08:46:37 C 11 10 19.42 +08 06 08.5 V T08
2019-04-27 08:59:07 C 11 10 19.04 +08 06 07.6 V T08
2019-04-27 09:10:49 C 11 10 18.67 +08 06 06.2 V T08
2019-04-27 09:23:30 C 11 10 18.30 +08 06 04.0 V T08
2019-04-29 05:27:42 C 11 09 10.76 +08 00 58.5 V 703
2019-04-29 05:35:51 C 11 09 10.49 +08 00 56.6 V 703
2019-04-29 05:44:00 C 11 09 10.24 +08 00 54.9 V 703
2019-04-29 05:52:09 C 11 09 10.05 +08 00 54.6 V 703
2019-04-29 06:12:46 C 11 09 09.56 +08 00 50.9 V G96
2019-04-29 06:20:54 C 11 09 09.35 +08 00 49.8 V G96
2019-04-29 06:29:02 C 11 09 09.13 +08 00 48.8 V G96
2019-04-29 06:37:09 C 11 09 08.93 +08 00 47.7 V G96
2019-05-01 08:41:33 C 11 08 03.27 +07 53 53.8 V T08
2019-05-01 08:54:08 C 11 08 03.00 +07 53 52.5 V T08
2019-05-01 09:07:19 C 11 08 02.66 +07 53 50.0 V T08
2019-05-01 09:19:43 C 11 08 02.44 +07 53 48.7 V T08
2019-05-07 08:41:41 C 11 05 59.78 +07 27 38.2 V T05
2019-05-07 08:49:43 C 11 05 59.64 +07 27 37.7 V T05
2019-05-07 08:54:36 C 11 05 59.64 +07 27 35.5 V T05