IAA RAS IAA Minor Planet Database

2019 YF4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2149322853 ± 2.79e-06
Semi-major axis (a)1.2626856672 AU ± 4.57e-06
Inclination (i)0.20637358° ± 3.57e-06
Long. of Asc. Node (Ω)259.93335357° ± 2.89e-04
Arg. of Perihelion (ω)216.85119693° ± 2.94e-04
Mean Anomaly (M)42.98193311° ± 8.00e-03
Mean Motion (n)0.6946553741°/day ± 3.77e-06
Perihelion dist (q)0.99129375 AU ± 5.03e-06
Aphelion dist (Q)1.53407758 AU ± 6.57e-06
Orbital Period1.41887088 yr ± 7.70e-06
Physical Parameters
H (abs. magnitude)27.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.384″
Uncertainty1
Orbit TypeApollo
MOID0.007528 AU
Observations Used94
Radar Obs Used1
Oppositions1
Arc Total2019-2020
First Observation Used2019-12-19
Last Observation Used2020-01-26
Observations (96)
Date Type RA Dec Mag Band Observatory
2019-12-19 02:25:53 C 03 18 28.69 +18 31 26.5 – V G96
2019-12-29 09:29:39 C 03 58 05.931 +18 40 43.12 – U F51
2019-12-29 09:47:22 C 03 58 09.563 +18 40 39.73 – U F51
2019-12-29 10:22:45 C 03 58 17.136 +18 40 31.06 – U F51
2019-12-30 10:41:04 C 04 06 23.260 +18 41 00.67 – V F51
2019-12-30 10:59:40 C 04 06 28.314 +18 40 53.49 – V F51
2019-12-30 11:18:07 C 04 06 33.457 +18 40 45.87 – V F51
2019-12-30 20:39:19 C 04 10 25.75 +18 38 28.3 – V L01
2019-12-30 20:40:37 C 04 10 26.14 +18 38 28.4 – V L01
2019-12-30 20:41:53 C 04 10 26.51 +18 38 28.3 – V L01
2019-12-30 20:44:24 C 04 10 27.25 +18 38 28.1 – V L01
2019-12-30 20:45:40 C 04 10 27.59 +18 38 28.4 – V L01
2019-12-30 20:46:57 C 04 10 27.97 +18 38 28.1 – V L01
2019-12-30 21:50:01 C 04 10 46.68 +18 38 17.7 – V 595
2019-12-30 21:58:45 C 04 10 50.20 +18 38 30.7 – V K63
2019-12-30 22:03:21 C 04 10 50.70 +18 38 15.8 – V 595
2019-12-30 22:08:55 C 04 10 53.25 +18 38 29.0 – V K63
2019-12-30 22:17:09 C 04 10 54.85 +18 38 13.5 – V 595
2019-12-30 22:19:32 C 04 10 56.47 +18 38 26.9 – V K63
2019-12-30 22:22:21 C 04 10 57.12 +18 38 25.9 – V 104
2019-12-30 22:28:05 C 04 10 58.89 +18 38 25.2 – V 104
2019-12-30 22:34:41 C 04 11 00.86 +18 38 23.5 – V 104
2019-12-30 22:46:12 C 04 11 05.57 +18 38 21.9 – q C77
2019-12-30 22:56:03 C 04 11 08.40 +18 38 07.9 – V 204
2019-12-30 22:59:34 C 04 11 09.68 +18 38 17.9 – q C77
2019-12-30 23:04:24 C 04 11 10.99 +18 38 06.3 – V 204
2019-12-30 23:12:45 C 04 11 13.59 +18 38 04.1 – V 204
2020-01-02 20:39:31 C 04 46 28.74 +18 25 14.9 – V 246
2020-01-02 20:40:12 C 04 46 29.11 +18 25 14.8 – V 246
2020-01-02 20:40:26 C 04 46 29.22 +18 25 14.2 – V 246
2020-01-02 20:40:41 C 04 46 29.31 +18 25 14.5 – V 246
2020-01-02 20:40:54 C 04 46 29.43 +18 25 14.0 – V 246
2020-01-02 20:41:20 C 04 46 29.72 +18 25 13.7 – V 246
2020-01-02 20:41:45 C 04 46 29.90 +18 25 13.9 – V 246
2020-01-02 20:42:01 C 04 46 30.03 +18 25 14.3 – V 246
2020-01-02 20:42:36 C 04 46 30.32 +18 25 13.3 – V 246
2020-01-03 02:23:21 C 04 50 34.23 +18 24 24.1 – V I52
2020-01-03 02:23:38 C 04 50 34.40 +18 24 24.4 – V I52
2020-01-03 02:23:53 C 04 50 34.54 +18 24 24.6 – V I52
2020-01-03 02:24:10 C 04 50 34.70 +18 24 24.3 – V I52
2020-01-03 07:26:27 C 04 53 18.15 +18 22 15.2 – V 703
2020-01-03 07:35:28 C 04 53 23.14 +18 22 06.4 – V 703
2020-01-03 07:44:30 C 04 53 28.29 +18 22 00.3 – V 703
2020-01-04 18:27:49 C 05 21 35.18 +17 51 23.5 – V B49
2020-01-04 18:38:26 C 05 21 43.76 +17 51 18.2 – V B49
2020-01-05 04:14:38 C 05 30 24.41 +17 41 36.0 – V G96
2020-01-05 04:22:36 C 05 30 30.77 +17 41 27.3 – V G96
2020-01-05 04:30:35 C 05 30 37.12 +17 41 18.5 – V G96
2020-01-05 04:38:33 C 05 30 43.46 +17 41 09.2 – V G96
2020-01-06 03:30:33 C 05 54 26.87 +16 59 54.5 – u H21
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2020-01-03 02:25:00 35970.6417 1.5 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)