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
2020-01-06 03:33:21 C 05 54 29.55 +16 59 49.1 – u H21
2020-01-06 03:36:08 C 05 54 32.24 +16 59 43.8 – u H21
2020-01-06 03:38:47 C 05 54 34.76 +16 59 38.6 – u H21
2020-01-06 03:41:18 C 05 54 37.19 +16 59 33.8 – u H21
2020-01-06 17:33:05 C 06 11 16.35 +16 22 35.2 – V K61
2020-01-06 17:34:13 C 06 11 17.65 +16 22 33.0 – V K61
2020-01-06 17:34:58 C 06 11 18.51 +16 22 30.8 – V K61
2020-01-06 17:35:29 C 06 11 19.15 +16 22 29.4 – V K61
2020-01-06 17:36:08 C 06 11 19.89 +16 22 27.4 – V K61
2020-01-06 19:55:28 C 06 14 03.96 +16 16 08.3 – V Z99
2020-01-06 19:59:10 C 06 14 08.21 +16 15 59.5 – V Z99
2020-01-06 20:02:55 C 06 14 12.53 +16 15 50.4 – V Z99
2020-01-06 20:18:36 C 06 14 35.22 +16 17 28.2 – q B49
2020-01-06 20:29:55 C 06 14 47.74 +16 17 01.7 – q B49
2020-01-06 20:41:23 C 06 15 00.54 +16 16 33.6 – q B49
2020-01-06 22:09:45 C 06 16 28.82 +16 11 20.7 – V 246
2020-01-06 22:10:19 C 06 16 29.49 +16 11 18.9 – V 246
2020-01-06 22:10:31 C 06 16 29.68 +16 11 17.6 – V 246
2020-01-06 22:10:42 C 06 16 29.85 +16 11 17.6 – V 246
2020-01-06 22:10:51 C 06 16 30.10 +16 11 17.1 – V 246
2020-01-06 22:11:02 C 06 16 30.28 +16 11 16.7 – V 246
2020-01-06 22:11:46 C 06 16 31.16 +16 11 14.1 – V 246
2020-01-06 22:37:39 C 06 17 08.70 +16 09 26.0 – V Z80
2020-01-06 22:42:39 C 06 17 14.40 +16 09 12.1 – V Z80
2020-01-06 22:47:39 C 06 17 19.97 +16 08 57.6 – V Z80
2020-01-06 22:52:38 C 06 17 25.57 +16 08 42.7 – V Z80
2020-01-10 22:35:51 C 08 43 50.85 +07 37 07.7 – V 203
2020-01-10 22:52:39 C 08 44 15.12 +07 35 09.7 – V 203
2020-01-10 23:09:33 C 08 44 39.38 +07 33 11.0 – V 203
2020-01-12 08:57:53 C 09 35 59.78 +03 33 01.7 – V 654
2020-01-12 09:03:40 C 09 36 06.83 +03 32 21.8 – V 654
2020-01-17 12:27:31 C 11 38 12.08 -06 24 47.6 – o 291
2020-01-17 12:29:45 C 11 38 13.16 -06 24 53.8 – o 291
2020-01-17 12:31:57 C 11 38 14.25 -06 25 00.1 – o 291
2020-01-18 09:55:24 C 11 51 06.21 -07 21 23.0 – o 691
2020-01-18 10:05:56 C 11 51 10.60 -07 21 49.3 – o 691
2020-01-18 10:16:23 C 11 51 14.85 -07 22 15.5 – o 691
2020-01-25 12:40:45 C 12 47 40.10 -11 11 34.0 – o 691
2020-01-25 12:57:49 C 12 47 42.06 -11 11 45.0 – o 691
2020-01-25 13:14:53 C 12 47 44.11 -11 11 55.8 – o 691
2020-01-25 13:23:20 C 12 48 00.495 -11 11 08.04 – U F52
2020-01-25 13:57:14 C 12 48 04.159 -11 11 34.10 – U F52
2020-01-25 14:14:12 C 12 48 05.910 -11 11 46.94 – U F52
2020-01-26 12:01:05 C 12 52 02.99 -11 26 35.1 – o 691
2020-01-26 12:19:03 C 12 52 04.73 -11 26 44.9 – o 691
2020-01-26 12:37:01 C 12 52 06.39 -11 26 54.6 – o 691
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)