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
2016-10-21 15:45:36 S 21 04 39.11 -22 42 46.5 L C51
2016-10-22 01:11:39 S 21 05 49.06 -22 34 03.2 L C51
2016-10-22 04:20:09 S 21 06 12.25 -22 31 08.9 L C51
2016-10-22 04:20:20 S 21 06 12.25 -22 31 08.7 L C51
2016-10-22 10:37:31 S 21 06 58.68 -22 25 19.7 L C51
2016-10-22 13:46:12 S 21 07 21.71 -22 22 25.4 L C51
2016-10-28 05:11:41 C 21 23 26.275 -20 19 12.74 L F51
2016-10-28 05:25:35 C 21 23 27.807 -20 19 00.46 L F51
2016-10-28 05:39:27 C 21 23 29.376 -20 18 47.83 L F51
2016-10-28 05:53:23 C 21 23 30.946 -20 18 35.22 L F51
2016-11-15 04:56:46 C 22 09 13.266 -14 10 42.94 L F51
2016-11-15 05:16:22 C 22 09 15.156 -14 10 27.04 L F51
2016-11-15 05:35:59 C 22 09 17.042 -14 10 11.18 L F51
2017-01-07 02:10:45 C 23 58 55.02 +00 42 09.0 q G96
2017-01-07 02:16:54 C 23 58 55.52 +00 42 12.5 q G96
2017-01-07 02:23:11 C 23 58 55.96 +00 42 16.0 q G96
2017-01-07 02:29:23 C 23 58 56.51 +00 42 19.9 q G96
2017-12-08 08:35:01 C 07 12 35.27 +31 40 52.0 u H21
2017-12-08 08:48:23 C 07 12 34.71 +31 40 53.9 u H21
2017-12-08 09:08:37 C 07 12 33.89 +31 40 57.3 u H21
2017-12-25 12:44:19 C 06 52 36.440 +32 35 19.25 U F51
2017-12-25 13:19:14 C 06 52 34.513 +32 35 22.47 U F51
2017-12-25 13:36:39 C 06 52 33.568 +32 35 24.12 U F51
2019-01-15 14:06:03 C 12 22 55.022 +04 08 25.99 U F52
2019-01-15 14:24:46 C 12 22 55.417 +04 08 24.17 U F52
2019-01-15 14:43:24 C 12 22 55.828 +04 08 22.41 U F52
2019-01-15 15:02:06 C 12 22 56.227 +04 08 20.55 U F52
2019-01-19 10:15:38 C 12 24 51.45 +04 00 20.8 V G96
2019-01-19 10:23:01 C 12 24 51.61 +04 00 19.6 V G96
2019-01-19 10:30:26 C 12 24 51.73 +04 00 19.1 V G96
2019-01-19 10:37:50 C 12 24 51.88 +04 00 18.8 V G96
2019-02-14 01:14:00 C 12 27 40.43 +04 05 22.0 V C95
2019-02-14 01:45:43 C 12 27 39.99 +04 05 24.8 V C95
2019-02-14 02:17:40 C 12 27 39.54 +04 05 27.8 V C95
2019-02-14 02:49:43 C 12 27 39.11 +04 05 31.2 V C95
2019-02-28 10:35:56 C 12 19 37.50 +04 55 56.6 V G96
2019-02-28 10:44:04 C 12 19 37.18 +04 55 58.3 V G96
2019-02-28 10:52:12 C 12 19 36.91 +04 56 00.0 V G96
2019-02-28 11:00:17 C 12 19 36.63 +04 56 01.3 V G96
2019-03-01 08:27:57 C 12 18 51.68 +05 00 10.3 V 703
2019-03-01 08:35:32 C 12 18 51.36 +05 00 11.3 V 703
2019-03-01 08:43:06 C 12 18 51.08 +05 00 13.9 V 703
2019-03-01 08:50:40 C 12 18 50.87 +05 00 14.9 V 703
2019-03-03 17:59:48 C 12 16 41.76 +05 11 47.0 q D29
2019-03-03 18:20:10 C 12 16 40.92 +05 11 51.6 q D29
2019-03-03 18:40:32 C 12 16 40.10 +05 11 55.7 q D29
2019-03-05 08:20:38 C 12 15 08.57 +05 19 52.2 V 703
2019-03-05 08:37:29 C 12 15 07.83 +05 19 56.1 V 703
2019-03-05 08:44:59 C 12 15 07.51 +05 19 57.9 V 703
2019-03-05 08:52:29 C 12 15 07.14 +05 19 58.9 V 703