2020 YY4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5028106324 ± 1.02e-07
Semi-major axis (a)2.5877546345 AU ± 9.48e-08
Inclination (i)14.48644434° ± 1.05e-05
Long. of Asc. Node (Ω)280.44386652° ± 1.97e-05
Arg. of Perihelion (ω)245.36325861° ± 6.84e-05
Mean Anomaly (M)46.08998032° ± 3.57e-05
Mean Motion (n)0.2367705231°/day ± 1.30e-08
Perihelion dist (q)1.28660409 AU ± 2.67e-07
Aphelion dist (Q)3.88890518 AU ± 2.99e-07
Orbital Period4.16279134 yr ± 2.29e-07
Physical Parameters
H (abs. magnitude)20.75
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.222″
Uncertainty0
Orbit TypeAmor
MOID0.382228 AU
Observations Used79
Oppositions3
Arc Total2020-2024
First Observation Used2020-12-24
Last Observation Used2024-12-22
Observations (83)
Date Type RA Dec Mag Band Observatory
2021-02-04 04:52:21 C 08 17 48.99 -09 44 56.5 u 807
2021-02-04 04:58:47 C 08 17 48.70 -09 45 06.8 u 807
2021-02-05 04:11:57 C 08 16 58.81 -10 20 58.3 u 807
2021-02-05 04:18:40 C 08 16 58.52 -10 21 08.6 u 807
2021-02-05 04:25:05 C 08 16 58.28 -10 21 18.6 u 807
2021-02-05 06:52:15 C 08 16 53.09 -10 25 26.8 V I52
2021-02-07 04:53:36 C 08 15 16.55 -11 34 41.2 u 807
2021-02-07 05:00:20 C 08 15 16.29 -11 34 51.1 u 807
2021-02-07 05:06:46 C 08 15 16.02 -11 35 00.5 u 807
2021-02-09 05:15:34 C 08 13 41.47 -12 46 03.6 V G96
2021-02-09 05:25:06 C 08 13 41.11 -12 46 17.1 V G96
2021-02-09 05:34:39 C 08 13 40.73 -12 46 31.3 V G96
2021-02-09 05:44:13 C 08 13 40.39 -12 46 44.7 V G96
2021-02-22 02:01:31 C 08 07 08.37 -19 14 05.6 u 807
2021-02-22 02:07:28 C 08 07 08.28 -19 14 11.1 u 807
2021-02-22 02:13:25 C 08 07 08.24 -19 14 17.9 u 807
2021-03-05 02:35:00 C 08 08 44.36 -23 10 12.9 u 807
2021-03-05 02:40:54 C 08 08 44.44 -23 10 17.1 u 807
2021-03-05 02:46:47 C 08 08 44.53 -23 10 21.6 u 807
2021-03-18 10:39:52 C 08 21 18.02 -26 08 26.7 V 474
2021-03-18 10:44:56 C 08 21 18.27 -26 08 28.6 V 474
2021-03-18 10:50:00 C 08 21 18.55 -26 08 30.8 V 474
2021-04-06 09:32:52 C 08 58 12.09 -27 52 35.2 V 474
2021-04-06 09:37:56 C 08 58 12.61 -27 52 35.6 V 474
2021-04-06 09:43:00 C 08 58 13.05 -27 52 36.1 V 474
2021-04-06 09:48:04 C 08 58 13.59 -27 52 36.4 V 474
2021-04-30 03:18:15 C 10 06 08.34 -27 19 04.8 V 291
2021-04-30 03:31:42 C 10 06 10.08 -27 19 03.1 V 291
2021-04-30 03:45:15 C 10 06 11.81 -27 19 00.5 V 291
2024-12-19 11:28:12 C 04 20 26.667 +32 41 39.55 V F51
2024-12-19 12:04:05 C 04 20 24.502 +32 41 17.67 V F51
2024-12-22 09:09:15 C 04 16 31.990 +31 59 30.00 V V06
2024-12-22 09:36:49 C 04 16 30.390 +31 59 12.90 V V06