IAA RAS IAA Minor Planet Database

620000 (2019 YS4)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5522863067 ± 3.77e-08
Semi-major axis (a)1.2774995551 AU ± 3.37e-09
Inclination (i)21.41937088° ± 4.77e-06
Long. of Asc. Node (Ω)102.53663585° ± 6.80e-06
Arg. of Perihelion (ω)160.37107574° ± 7.85e-06
Mean Anomaly (M)287.68791035° ± 7.38e-06
Mean Motion (n)0.6826076323°/day ± 2.70e-09
Perihelion dist (q)0.57195404 AU ± 4.82e-08
Aphelion dist (Q)1.98304507 AU ± 4.85e-08
Orbital Period1.44391337 yr ± 5.72e-09
Physical Parameters
H (abs. magnitude)19.95
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.169″
Uncertainty0
Orbit TypeApollo
MOID0.311043 AU
Observations Used119
Oppositions4
Arc Total2010-2023
First Observation Used2010-02-16
Last Observation Used2023-12-04
Observations (127)
Date Type RA Dec Mag Band Observatory
2020-01-04 06:55:06 C 08 54 00.27 +27 45 09.2 – V I52
2020-01-04 07:12:47 C 08 53 59.12 +27 45 30.8 – V G96
2020-01-04 07:20:14 C 08 53 58.76 +27 45 39.1 – V G96
2020-01-04 07:27:40 C 08 53 58.18 +27 45 48.5 – V G96
2020-01-04 07:35:07 C 08 53 57.72 +27 45 57.5 – V G96
2020-01-05 11:51:48 C 08 52 10.07 +28 20 31.7 – V I52
2020-01-05 11:57:45 C 08 52 09.67 +28 20 38.4 – V I52
2020-01-05 12:00:36 C 08 52 09.51 +28 20 42.1 – V I52
2020-01-05 12:06:46 C 08 52 09.11 +28 20 49.2 – V I52
2020-01-06 08:22:56 C 08 50 48.51 +28 46 11.0 – V I52
2020-01-06 08:25:46 C 08 50 48.26 +28 46 15.3 – V I52
2020-01-06 08:28:36 C 08 50 48.02 +28 46 18.8 – V I52
2020-01-18 05:50:29 C 08 24 06.77 +35 21 52.0 – V I52
2020-01-18 05:52:05 C 08 24 06.63 +35 21 54.4 – V I52
2020-01-18 05:53:42 C 08 24 06.43 +35 21 56.8 – V I52
2020-01-18 05:55:18 C 08 24 06.25 +35 21 58.9 – V I52
2020-01-18 10:27:41 C 08 23 33.120 +35 28 41.87 – V F52
2020-01-22 09:32:01 C 08 11 14.946 +37 47 51.33 – U F52
2020-01-22 09:49:33 C 08 11 12.448 +37 48 16.76 – U F52
2020-01-22 10:06:33 C 08 11 10.028 +37 48 41.72 – U F52
2020-01-22 10:23:42 C 08 11 07.566 +37 49 06.56 – U F52
2020-01-26 09:52:47 C 07 57 10.341 +40 05 14.85 – U F51
2020-01-26 10:09:42 C 07 57 07.649 +40 05 38.45 – U F51
2020-01-26 10:26:37 C 07 57 04.952 +40 06 01.95 – U F51
2020-01-26 10:43:38 C 07 57 02.252 +40 06 25.39 – U F51
2020-01-27 09:18:50 C 07 53 32.011 +40 37 33.15 – U F52
2020-01-27 09:36:15 C 07 53 29.181 +40 37 56.89 – U F52
2020-01-28 07:44:34 C 07 49 59.071 +41 07 54.84 – V F51
2020-01-28 07:48:25 C 07 49 58.434 +41 08 00.00 – V F51
2020-01-31 09:02:47 C 07 37 55.634 +42 42 52.52 – U F52
2020-01-31 09:19:33 C 07 37 52.707 +42 43 13.32 – U F52
2020-01-31 09:35:59 C 07 37 49.843 +42 43 33.91 – U F52
2020-01-31 09:52:24 C 07 37 46.979 +42 43 54.28 – U F52
2020-02-01 09:07:43 C 07 33 50.885 +43 12 24.36 – U F51
2020-02-01 09:25:25 C 07 33 47.793 +43 12 45.57 – U F51
2020-02-01 09:43:02 C 07 33 44.696 +43 13 06.71 – U F51
2020-02-14 02:55:57 C 06 40 56.93 +47 58 55.7 – V I52
2020-02-14 02:58:31 C 06 40 56.44 +47 58 57.0 – V I52
2020-02-14 02:59:39 C 06 40 56.11 +47 58 59.4 – V I52
2020-02-27 03:56:28 C 05 56 00.67 +50 14 27.2 – V I52
2020-02-27 04:02:10 C 05 55 59.93 +50 14 29.0 – V I52
2020-02-27 04:03:58 C 05 55 59.71 +50 14 29.0 – V I52
2020-02-27 04:07:07 C 05 55 59.26 +50 14 29.2 – V I52
2020-10-14 13:37:05 C 05 49 26.519 -04 58 17.64 – V F52
2020-10-14 13:53:39 C 05 49 26.060 -04 58 21.99 – V F52
2020-10-14 14:10:12 C 05 49 25.510 -04 58 26.95 – V F52
2020-10-18 13:28:08 C 05 46 20.736 -05 25 44.95 – V F52
2020-11-11 10:50:30 C 05 09 09.34 -07 04 08.0 – o 291
2020-11-11 11:05:08 C 05 09 07.97 -07 04 08.1 – o 291
2020-11-11 11:19:45 C 05 09 06.64 -07 04 08.4 – o 291