2019 ST4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5828376368 ± 8.82e-05
Semi-major axis (a)2.8712078984 AU ± 6.61e-04
Inclination (i)10.39764354° ± 1.06e-03
Long. of Asc. Node (Ω)12.36176047° ± 4.55e-04
Arg. of Perihelion (ω)6.51081581° ± 5.54e-04
Mean Anomaly (M)92.39352639° ± 1.57e-01
Mean Motion (n)0.2025887460°/day ± 6.99e-05
Perihelion dist (q)1.19775987 AU ± 3.74e-04
Aphelion dist (Q)4.54465592 AU ± 1.08e-03
Orbital Period4.86515812 yr ± 1.68e-03
Physical Parameters
H (abs. magnitude)23.40
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.198″
Uncertainty3
Orbit TypeAmor
MOID0.198153 AU
Observations Used23
Oppositions1
Arc Total2019-2019
First Observation Used2019-09-24
Last Observation Used2019-10-28
Observations (24)
Date Type RA Dec Mag Band Observatory
2019-09-24 14:05:18 C 02 12 34.300 +08 06 32.20 U F51
2019-09-24 14:21:35 C 02 12 35.427 +08 07 13.44 U F51
2019-09-24 14:37:48 C 02 12 36.563 +08 07 55.25 U F51
2019-09-24 14:54:10 C 02 12 37.726 +08 08 36.86 U F51
2019-09-25 08:51:50 C 02 14 04.23 +08 54 45.0 V V06
2019-09-25 08:59:42 C 02 14 04.78 +08 55 05.4 V V06
2019-09-25 09:02:16 C 02 14 04.95 +08 55 11.9 V V06
2019-09-25 09:04:50 C 02 14 05.16 +08 55 18.8 V V06
2019-09-25 13:46:06 C 02 14 26.136 +09 07 33.52 V F51
2019-09-25 14:02:35 C 02 14 27.236 +09 08 15.21 V F51
2019-09-25 14:19:07 C 02 14 28.412 +09 08 58.57 V F51
2019-09-25 14:35:40 C 02 14 29.563 +09 09 41.31 V F51
2019-09-27 08:00:57 C 02 17 42.20 +10 57 51.1 u H21
2019-09-27 08:41:42 C 02 17 44.94 +10 59 38.8 u H21
2019-09-30 07:45:01 C 02 23 02.35 +14 08 57.6 V G96
2019-09-30 07:53:10 C 02 23 02.88 +14 09 19.7 V G96
2019-09-30 08:01:17 C 02 23 03.39 +14 09 41.7 V G96
2019-09-30 08:09:27 C 02 23 03.91 +14 10 03.5 V G96
2019-10-22 06:25:32 C 02 52 05.36 +35 35 06.2 u H21
2019-10-22 06:35:43 C 02 52 05.56 +35 35 25.8 u H21
2019-10-28 04:54:08 C 02 56 27.01 +39 39 18.4 u H21
2019-10-28 04:58:32 C 02 56 27.11 +39 39 25.5 u H21
2019-10-28 05:18:43 C 02 56 27.42 +39 39 56.6 u H21
2019-10-28 05:43:00 C 02 56 27.80 +39 40 33.6 u H21