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
2022-02-03 11:23:28 C 11 24 20.496 +12 37 24.56 U F52
2022-02-06 09:18:40 C 11 22 22.65 +12 53 19.2 V G96
2022-02-06 09:26:05 C 11 22 22.43 +12 53 20.8 V G96
2022-02-06 09:33:33 C 11 22 22.19 +12 53 22.7 V G96
2022-02-06 09:41:01 C 11 22 21.96 +12 53 24.4 V G96
2022-02-10 10:32:24 C 11 19 11.864 +13 17 11.39 U F52
2022-02-10 10:48:59 C 11 19 11.254 +13 17 15.70 U F52
2022-02-10 11:05:35 C 11 19 10.639 +13 17 19.94 U F52
2022-02-26 09:22:20 C 11 02 07.276 +15 01 37.63 U F52
2022-02-26 09:57:26 C 11 02 05.375 +15 01 47.37 U F52
2022-02-26 10:15:01 C 11 02 04.424 +15 01 52.22 U F52
2022-02-27 07:32:55 C 11 00 57.00 +15 07 41.3 V 703
2022-02-27 07:40:31 C 11 00 56.58 +15 07 43.1 V 703
2022-02-27 07:48:06 C 11 00 56.26 +15 07 45.7 V 703
2022-02-27 07:55:43 C 11 00 55.84 +15 07 48.1 V 703
2022-03-01 06:09:30 C 10 58 27.31 +15 20 19.7 U I41
2022-03-01 06:27:55 C 10 58 26.28 +15 20 24.8 U I41
2022-03-01 06:28:36 C 10 58 26.23 +15 20 25.1 U I41
2022-03-01 06:29:59 C 10 58 26.16 +15 20 25.4 U I41
2022-03-01 06:36:09 C 10 58 25.78 +15 20 27.3 V G96
2022-03-01 06:38:55 C 10 58 25.67 +15 20 27.7 U I41
2022-03-01 06:40:18 C 10 58 25.59 +15 20 28.1 U I41
2022-03-01 06:42:23 C 10 58 25.46 +15 20 28.6 U I41
2022-03-01 06:43:34 C 10 58 25.36 +15 20 29.3 V G96
2022-03-01 06:43:47 C 10 58 25.39 +15 20 29.2 U I41
2022-03-01 06:51:00 C 10 58 24.95 +15 20 31.3 V G96
2022-03-01 06:58:26 C 10 58 24.53 +15 20 33.3 V G96
2022-03-02 08:23:01 C 10 57 01.635 +15 27 20.76 U F52
2022-03-02 08:42:13 C 10 57 00.558 +15 27 25.91 U F52
2022-03-02 09:01:27 C 10 56 59.474 +15 27 31.07 U F52
2022-03-02 09:20:57 C 10 56 58.373 +15 27 36.25 U F52
2022-03-03 05:25:03 C 10 55 52.29 +15 32 51.2 U I41
2022-03-03 05:26:26 C 10 55 52.21 +15 32 51.7 U I41
2022-03-03 06:38:13 C 10 55 48.17 +15 33 10.8 U I41
2022-03-03 06:43:10 C 10 55 47.87 +15 33 12.1 U I41
2022-03-09 06:19:49 C 10 47 45.28 +16 08 38.1 V 703
2022-03-09 06:36:10 C 10 47 44.29 +16 08 41.0 V 703
2022-03-09 06:44:21 C 10 47 43.72 +16 08 43.6 V 703
2022-03-10 07:56:05 C 10 46 18.77 +16 14 26.2 V T05
2022-03-10 08:00:45 C 10 46 18.43 +16 14 27.4 V T05
2022-03-10 08:05:21 C 10 46 18.22 +16 14 28.2 V T05
2022-03-10 08:12:39 C 10 46 17.81 +16 14 29.0 V T05
2022-03-10 11:29:30 C 10 46 06.339 +16 15 13.38 U F52
2022-03-10 12:04:28 C 10 46 04.314 +16 15 21.01 U F52
2022-03-10 12:22:02 C 10 46 03.294 +16 15 24.80 U F52
2022-03-24 06:51:13 C 10 28 20.11 +17 10 10.5 V V00
2022-03-24 06:58:12 C 10 28 19.76 +17 10 11.3 V V00
2022-03-24 07:05:12 C 10 28 19.40 +17 10 12.0 V V00
2022-03-24 07:12:12 C 10 28 19.05 +17 10 12.7 V V00
2022-03-26 06:18:37 C 10 26 04.125 +17 14 39.44 U F52