164121 (2003 YT1)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2920665159 ± 2.00e+00
Semi-major axis (a)1.1099182345 AU ± 3.00e+00
Inclination (i)44.05771177° ± 4.00e+00
Long. of Asc. Node (Ω)38.31022261° ± 5.00e+00
Arg. of Perihelion (ω)91.00605506° ± 6.00e+00
Mean Anomaly (M)212.28626562° ± 1.15e-06
Mean Motion (n)0.8428995009°/day ± 3.42e+00
Perihelion dist (q)0.78574828 AU ± 3.07e+00
Aphelion dist (Q)1.43408819 AU ± 4.47e+00
Orbital Period1.16932835 yr ± 4.74e+00
NGA Modelr2
A2-3.93312334e-06 AU/d²
Physical Parameters
H (abs. magnitude)16.15
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-29
RMS Residual0.005″
Uncertainty0
Orbit TypeApollo
MOID0.002485 AU
Observations Used1832
Gaia Obs Used128
Oppositions5
Arc Total1982-2017
First Observation Used1982-11-19
Last Observation Used2025-07-16
Observations (2354)
Date Type RA Dec Mag Band Observatory
2024-03-10 03:27:08 C 18 54 06.811 -14 38 22.56 V M22
2024-03-10 09:10:24 C 18 54 37.961 -14 50 53.30 V W68
2024-03-10 09:31:52 C 18 54 39.854 -14 51 40.54 V W68
2024-03-10 09:48:08 C 18 54 41.254 -14 52 16.54 V W68
2024-03-12 09:07:07 C 18 59 04.058 -16 36 38.45 V W68
2024-03-12 09:34:39 C 18 59 06.562 -16 37 39.86 V W68
2024-03-12 09:38:38 C 18 59 06.950 -16 37 48.58 V W68
2024-03-13 08:44:59 C 19 01 19.162 -17 29 19.10 V W68
2024-03-13 08:49:35 C 19 01 19.615 -17 29 29.76 V W68
2024-03-13 08:58:09 C 19 01 20.417 -17 29 49.13 V W68
2024-03-13 09:25:56 C 19 01 23.028 -17 30 51.73 V W68
2024-03-15 02:48:22 C 19 05 26.270 -19 04 00.08 V M22
2024-03-15 02:54:15 C 19 05 26.815 -19 04 13.87 V M22
2024-03-15 03:17:20 C 19 05 29.078 -19 05 05.93 V M22
2024-03-15 03:25:13 C 19 05 29.839 -19 05 24.04 V M22
2024-03-19 03:10:54 C 19 15 26.153 -22 45 11.09 V M22
2024-03-19 03:15:30 C 19 15 26.654 -22 45 21.53 V M22
2024-03-19 03:22:48 C 19 15 27.425 -22 45 39.10 V M22
2024-03-19 03:30:54 C 19 15 28.274 -22 45 57.82 V M22
2024-03-19 03:42:50 C 19 15 29.525 -22 46 25.21 V M22
2024-03-21 09:02:10 C 19 21 23.311 -24 51 08.21 V W68
2024-03-21 09:23:49 C 19 21 25.702 -24 51 59.36 V W68
2024-03-21 09:28:29 C 19 21 26.215 -24 52 10.45 V W68
2024-03-21 09:53:06 C 19 21 28.910 -24 53 09.28 V W68
2024-03-24 08:54:24 C 19 29 46.320 -27 41 31.24 V W68
2024-03-24 08:58:27 C 19 29 46.843 -27 41 40.63 V W68
2024-03-24 09:24:41 C 19 29 49.906 -27 42 44.06 V W68
2024-03-24 09:32:23 C 19 29 50.808 -27 43 02.39 V W68
2024-03-25 08:56:31 C 19 32 41.688 -28 39 00.72 V W68
2024-03-25 09:00:31 C 19 32 42.180 -28 39 10.58 V W68
2024-03-25 09:05:07 C 19 32 42.725 -28 39 21.56 V W68
2024-03-25 09:12:23 C 19 32 43.570 -28 39 39.02 V W68
2024-03-26 02:25:19 C 19 34 51.610 -29 20 57.08 V M22
2024-03-26 02:30:46 C 19 34 52.286 -29 21 09.83 V M22
2024-03-26 03:00:10 C 19 34 55.882 -29 22 21.22 V M22
2024-03-26 03:17:12 C 19 34 57.960 -29 23 02.08 V M22
2024-03-28 08:48:59 C 19 41 48.965 -31 32 08.92 V W68
2024-03-28 08:58:36 C 19 41 50.218 -31 32 32.89 V W68
2024-03-28 09:08:52 C 19 41 51.538 -31 32 57.19 V W68
2024-03-28 09:18:07 C 19 41 52.762 -31 33 19.33 V W68
2024-03-29 08:17:26 C 19 44 55.567 -32 29 00.35 V W68
2024-03-29 08:48:19 C 19 44 59.618 -32 30 16.06 V W68
2024-03-29 08:52:58 C 19 45 00.245 -32 30 27.54 V W68
2024-03-29 09:02:17 C 19 45 01.483 -32 30 50.04 V W68
2024-03-31 02:47:21 C 19 50 43.522 -34 12 14.44 V M22
2024-03-31 02:51:24 C 19 50 44.076 -34 12 24.30 V M22
2024-03-31 02:55:23 C 19 50 44.628 -34 12 34.27 V M22
2024-03-31 02:56:49 C 19 50 44.803 -34 12 37.87 V M22
2024-03-31 03:01:37 C 19 50 45.480 -34 12 49.00 V M22
2024-03-31 03:12:39 C 19 50 46.990 -34 13 16.32 V M22
Radar Observations (11)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2004-05-01 23:42:00 74474126.77 2 us 2380 -1 -1
2004-05-02 21:44:00 77993481.53 2 us 2380 -1 -1
2004-05-02 21:44:00 -133764.851 2 Hz 2380 -1 -1
2016-10-27 07:40:00 66299207 4 us 8560 -14 -14
2016-10-28 07:00:00 55251316 2 us 8560 -14 -14
2016-10-28 08:28:00 54572031.44 1 us 2380 -1 -1
2016-10-29 10:30:00 43996004.17 1 us 8560 -14 -14
2016-10-31 05:40:00 34741188.135 1 us 8560 -14 -14
2023-11-01 05:30:00 66728692 10 us 8560 -14 -14
2023-11-01 06:10:00 66557486 2 us 8560 -14 -14
2023-11-07 05:10:00 77097307 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)