2019 YJ4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6107515185 ± 3.53e-06
Semi-major axis (a)2.7344282788 AU ± 2.76e-05
Inclination (i)25.67251525° ± 3.16e-05
Long. of Asc. Node (Ω)303.35298821° ± 1.67e-05
Arg. of Perihelion (ω)230.93796754° ± 3.19e-05
Mean Anomaly (M)97.37585412° ± 6.82e-03
Mean Motion (n)0.2179779034°/day ± 3.31e-06
Perihelion dist (q)1.06437206 AU ± 1.45e-05
Aphelion dist (Q)4.40448450 AU ± 4.56e-05
Orbital Period4.52167980 yr ± 6.86e-05
Physical Parameters
H (abs. magnitude)19.60
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.255″
Uncertainty1
Orbit TypeAmor
MOID0.200159 AU
Observations Used49
Oppositions1
Arc Total2019-2020
First Observation Used2019-12-24
Last Observation Used2020-06-13
Observations (51)
Date Type RA Dec Mag Band Observatory
2019-12-24 15:01:14 C 11 20 56.831 +09 37 10.50 V F51
2019-12-24 15:04:15 C 11 20 57.153 +09 37 02.59 V F51
2019-12-27 14:20:24 C 11 28 52.714 +06 31 08.77 U F51
2019-12-27 14:38:56 C 11 28 54.715 +06 30 18.44 U F51
2019-12-27 15:16:04 C 11 28 58.740 +06 28 37.43 U F51
2019-12-28 03:14:49 C 11 30 19.54 +05 55 44.4 V L01
2019-12-28 03:21:37 C 11 30 20.30 +05 55 25.7 V L01
2019-12-28 03:28:25 C 11 30 21.05 +05 55 06.7 V L01
2019-12-28 03:39:40 C 11 30 22.26 +05 54 35.1 V L01
2019-12-28 03:52:24 C 11 30 23.70 +05 54 00.3 V L01
2019-12-29 01:31:45 C 11 32 50.63 +04 53 31.0 V 033
2019-12-29 01:35:24 C 11 32 51.02 +04 53 20.9 V 033
2019-12-29 01:39:01 C 11 32 51.43 +04 53 10.6 V 033
2019-12-29 03:31:21 C 11 33 03.83 +04 47 53.5 V L01
2019-12-29 04:14:53 C 11 33 08.68 +04 45 50.2 V L01
2019-12-29 04:21:08 C 11 33 09.30 +04 45 32.6 V L01
2019-12-29 05:07:03 C 11 33 14.38 +04 43 20.9 V 033
2019-12-29 05:10:43 C 11 33 14.81 +04 43 10.9 V 033
2019-12-29 05:14:21 C 11 33 15.21 +04 43 00.5 V 033
2020-01-04 12:19:23 C 11 50 47.76 -03 01 32.0 V I52
2020-01-04 12:20:29 C 11 50 47.91 -03 01 35.2 V I52
2020-01-04 12:21:35 C 11 50 48.04 -03 01 38.9 V I52
2020-01-04 12:22:41 C 11 50 48.14 -03 01 42.8 V I52
2020-01-17 15:18:36 C 12 31 43.90 -22 29 40.1 V 474
2020-01-17 15:21:10 C 12 31 44.28 -22 29 50.1 V 474
2020-01-17 15:23:44 C 12 31 44.65 -22 30 00.8 V 474
2020-01-17 15:26:18 C 12 31 44.97 -22 30 11.4 V 474
2020-01-20 13:54:14 C 12 42 08.608 -27 12 08.09 U F51
2020-01-20 14:09:01 C 12 42 10.751 -27 13 06.77 U F51
2020-01-20 14:23:47 C 12 42 12.925 -27 14 06.21 U F51
2020-01-20 14:38:34 C 12 42 15.077 -27 15 05.47 U F51
2020-03-15 09:35:44 C 18 41 04.56 -70 12 59.3 u 807
2020-03-15 09:40:09 C 18 41 05.67 -70 12 58.7 u 807
2020-03-15 09:43:49 C 18 41 06.64 -70 12 58.7 u 807
2020-03-16 09:27:58 C 18 47 27.93 -70 10 23.8 u 807
2020-03-16 09:34:44 C 18 47 29.66 -70 10 23.2 u 807
2020-03-16 09:41:29 C 18 47 31.45 -70 10 22.6 u 807
2020-05-17 14:42:52 C 20 08 29.92 -65 19 04.4 V 474
2020-05-17 14:47:56 C 20 08 29.27 -65 19 03.9 V 474
2020-05-17 14:53:00 C 20 08 28.71 -65 19 02.8 V 474
2020-05-17 14:58:05 C 20 08 28.06 -65 19 01.9 V 474
2020-05-19 15:07:34 C 20 02 41.02 -65 09 26.8 V 474
2020-05-19 15:17:42 C 20 02 39.66 -65 09 25.1 V 474
2020-05-19 15:27:50 C 20 02 38.33 -65 09 22.6 V 474
2020-05-27 14:29:02 C 19 36 07.59 -64 11 40.7 V 474
2020-05-27 14:34:06 C 19 36 06.82 -64 11 38.2 V 474
2020-05-27 14:39:10 C 19 36 06.06 -64 11 36.4 V 474
2020-05-27 14:44:45 C 19 36 05.20 -64 11 34.7 V 474
2020-06-13 13:46:17 C 18 34 23.32 -59 42 17.5 V 474
2020-06-13 13:51:22 C 18 34 22.57 -59 42 12.4 V 474