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
2019-05-07 09:07:31 C 11 05 59.51 +07 27 32.4 V T05
2019-05-07 09:15:36 C 11 05 59.39 +07 27 30.9 V T05
2019-05-07 09:20:23 C 11 05 59.36 +07 27 29.6 V T05
2019-05-07 09:28:29 C 11 05 59.25 +07 27 27.5 V T05
2019-05-09 07:07:00 C 11 05 41.00 +07 17 12.9 V T08
2019-05-09 07:09:40 C 11 05 41.09 +07 17 11.7 V T08
2019-05-09 07:17:39 C 11 05 41.03 +07 17 09.3 V T08
2019-05-09 07:41:57 C 11 05 40.74 +07 17 03.9 V T08
2019-05-11 07:50:52 C 11 05 31.87 +07 05 16.2 V T05
2019-05-11 07:54:55 C 11 05 31.86 +07 05 14.3 V T05
2019-05-11 08:03:40 C 11 05 31.88 +07 05 11.8 V T05
2019-05-11 08:21:43 C 11 05 31.80 +07 05 07.1 V T05
2019-05-24 05:14:29 C 11 08 41.88 +05 27 02.1 V 703
2019-05-24 05:21:59 C 11 08 41.96 +05 26 58.9 V 703
2019-05-24 05:29:30 C 11 08 42.13 +05 26 55.0 V 703
2019-05-24 05:37:01 C 11 08 42.21 +05 26 50.6 V 703
2019-05-28 04:43:50 C 11 11 01.67 +04 49 24.4 V 703
2019-05-28 04:52:02 C 11 11 01.84 +04 49 20.4 V 703
2019-05-28 05:00:15 C 11 11 02.14 +04 49 17.2 V 703
2019-05-28 05:08:27 C 11 11 02.23 +04 49 13.7 V 703
2019-05-28 06:19:29 C 11 11 04.417 +04 48 46.92 U F52
2019-05-28 06:36:21 C 11 11 04.848 +04 48 40.05 U F52
2019-05-28 06:53:04 C 11 11 05.278 +04 48 33.14 U F52
2019-05-28 07:09:48 C 11 11 05.708 +04 48 26.24 U F52
2019-05-29 07:09:00 C 11 11 46.50 +04 38 28.4 V T08
2019-05-29 07:23:07 C 11 11 47.04 +04 38 22.8 V T08
2019-05-29 07:27:10 C 11 11 47.17 +04 38 19.8 V T08
2019-05-29 07:34:29 C 11 11 47.37 +04 38 16.3 V T08
2019-05-29 07:35:08 C 11 11 47.46 +04 38 17.2 V T08
2019-05-29 07:50:40 C 11 11 47.88 +04 38 10.4 V T08
2019-06-01 04:46:37 C 11 13 58.15 +04 08 20.7 V 703
2019-06-01 04:54:47 C 11 13 58.53 +04 08 16.5 V 703
2019-06-01 05:11:08 C 11 13 59.02 +04 08 10.5 V 703
2019-06-05 04:17:26 C 11 17 28.27 +03 24 20.6 V G96
2019-06-05 04:25:35 C 11 17 28.58 +03 24 16.3 V G96
2019-06-05 04:33:43 C 11 17 28.92 +03 24 13.2 V G96
2019-06-05 04:41:51 C 11 17 29.22 +03 24 09.1 V G96
2022-01-26 12:33:02 C 11 28 16.24 +12 00 11.4 V G96
2022-01-26 12:41:10 C 11 28 16.09 +12 00 12.7 V G96
2022-01-26 12:49:17 C 11 28 15.98 +12 00 14.2 V G96
2022-01-26 12:57:25 C 11 28 15.85 +12 00 15.6 V G96
2022-01-27 11:07:13 C 11 27 55.183 +12 04 05.46 U F52
2022-01-27 11:24:45 C 11 27 54.866 +12 04 08.44 U F52
2022-01-27 11:42:18 C 11 27 54.556 +12 04 11.55 U F52
2022-01-27 11:59:49 C 11 27 54.250 +12 04 14.81 U F52
2022-01-30 19:27:19 C 11 26 24.59 +12 19 02.3 V D29
2022-01-30 20:05:30 C 11 26 23.76 +12 19 09.4 V D29
2022-02-03 10:34:03 C 11 24 21.848 +12 37 13.44 U F52
2022-02-03 10:50:29 C 11 24 21.400 +12 37 17.23 U F52
2022-02-03 11:06:59 C 11 24 20.955 +12 37 20.98 U F52