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
2024-11-23 19:11:47 C 21 54 58.675 -42 26 29.98 V M22
2024-11-23 19:20:24 C 21 54 59.218 -42 26 11.80 V M22
2024-11-23 19:38:26 C 21 55 00.415 -42 25 30.83 V M22
2024-11-23 19:42:24 C 21 55 00.703 -42 25 22.30 V M22
2024-11-23 20:10:27 C 21 55 02.398 -42 24 20.23 V M22
2024-11-23 20:37:16 C 21 55 04.308 -42 23 22.02 V M22
2024-11-26 00:31:34 C 21 58 33.631 -40 29 10.28 V W68
2024-11-26 00:32:13 C 21 58 33.727 -40 29 08.09 V W68
2024-11-26 00:33:30 C 21 58 33.823 -40 29 04.34 V W68
2024-11-26 00:36:07 C 21 58 33.965 -40 28 59.27 V W68
2024-11-26 00:36:46 C 21 58 34.054 -40 28 58.58 V W68
2024-11-26 00:44:38 C 21 58 34.526 -40 28 40.19 V W68
2024-11-26 01:12:41 C 21 58 36.358 -40 27 37.80 V W68
2024-11-26 01:13:20 C 21 58 36.362 -40 27 36.58 V W68
2024-11-26 01:14:39 C 21 58 36.456 -40 27 33.30 V W68
2024-11-28 00:50:44 C 22 01 46.152 -38 42 44.46 V W68
2024-11-28 00:55:57 C 22 01 46.488 -38 42 34.24 V W68
2024-11-28 00:57:16 C 22 01 46.541 -38 42 30.35 V W68
2024-11-28 01:01:52 C 22 01 46.846 -38 42 20.56 V W68
2024-11-28 01:28:50 C 22 01 48.593 -38 41 20.76 V W68
2024-11-28 01:30:11 C 22 01 48.619 -38 41 18.53 V W68
2024-11-28 01:39:27 C 22 01 49.217 -38 40 57.97 V W68
2024-11-28 01:40:06 C 22 01 49.368 -38 40 55.20 V W68
2024-11-28 19:14:41 C 22 02 58.843 -38 02 14.06 V M22
2024-11-28 19:19:19 C 22 02 59.143 -38 02 03.66 V M22
2024-11-28 19:44:19 C 22 03 00.698 -38 01 08.69 V M22
2024-11-28 19:52:13 C 22 03 01.262 -38 00 51.05 V M22
2024-12-01 02:28:48 C 22 06 35.491 -36 00 40.18 V W68
2024-12-01 02:59:29 C 22 06 37.385 -35 59 33.22 V W68
2024-12-01 03:04:14 C 22 06 37.750 -35 59 22.67 V W68
2024-12-01 03:17:30 C 22 06 38.602 -35 58 52.72 V W68
2024-12-02 01:11:45 C 22 08 03.998 -35 10 45.80 V W68
2024-12-02 01:15:46 C 22 08 04.238 -35 10 37.20 V W68
2024-12-02 01:24:22 C 22 08 04.776 -35 10 17.83 V W68
2024-12-02 02:13:50 C 22 08 07.870 -35 08 28.28 V W68
2024-12-10 01:24:36 C 22 20 17.194 -28 10 22.04 V W68
2024-12-10 01:28:39 C 22 20 17.470 -28 10 12.11 V W68
2024-12-10 01:36:38 C 22 20 17.923 -28 09 55.04 V W68
2024-12-10 01:54:25 C 22 20 19.027 -28 09 15.01 V W68
2024-12-13 01:04:10 C 22 24 43.961 -25 35 02.58 V W68
2024-12-13 01:08:44 C 22 24 44.287 -25 34 52.75 V W68
2024-12-13 01:16:34 C 22 24 44.753 -25 34 35.80 V W68
2024-12-13 01:34:58 C 22 24 45.866 -25 33 54.76 V W68
2024-12-18 01:05:42 C 22 32 03.418 -21 17 08.70 V W68
2024-12-18 01:10:18 C 22 32 03.660 -21 16 58.76 V W68
2024-12-18 01:17:43 C 22 32 04.118 -21 16 42.38 V W68
2024-12-18 01:42:51 C 22 32 05.628 -21 15 48.82 V W68
2024-12-18 18:56:13 C 22 33 07.992 -20 39 03.56 V M22
2024-12-18 19:00:47 C 22 33 08.278 -20 38 54.35 V M22
2024-12-18 19:17:17 C 22 33 09.230 -20 38 18.28 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)