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
2024-10-09 01:39:41 C 20 11 02.052 -79 21 57.42 V W68
2024-10-09 01:55:00 C 20 11 04.627 -79 21 30.60 V W68
2024-10-18 19:21:19 C 20 44 03.446 -72 25 28.70 V M22
2024-10-18 19:25:57 C 20 44 03.938 -72 25 19.45 V M22
2024-10-18 19:39:36 C 20 44 05.484 -72 24 54.22 V M22
2024-10-18 19:54:07 C 20 44 06.991 -72 24 26.14 V M22
2024-10-21 01:05:57 C 20 49 54.480 -70 43 59.95 V W68
2024-10-21 01:13:55 C 20 49 55.126 -70 43 45.55 V W68
2024-10-21 01:19:51 C 20 49 55.747 -70 43 33.46 V W68
2024-10-21 01:47:58 C 20 49 58.483 -70 42 40.07 V W68
2024-10-21 01:52:37 C 20 49 59.014 -70 42 30.96 V W68
2024-10-21 02:08:22 C 20 50 00.454 -70 42 00.07 V W68
2024-10-22 19:38:29 C 20 54 15.794 -69 22 18.37 V M22
2024-10-22 19:43:09 C 20 54 16.267 -69 22 09.12 V M22
2024-10-22 19:54:16 C 20 54 17.285 -69 21 47.66 V M22
2024-10-22 20:08:18 C 20 54 18.598 -69 21 20.02 V M22
2024-10-25 01:54:16 C 20 59 33.058 -67 36 27.29 V W68
2024-10-25 01:59:39 C 20 59 33.434 -67 36 16.16 V W68
2024-10-25 02:07:41 C 20 59 34.210 -67 36 00.40 V W68
2024-10-25 02:33:31 C 20 59 36.554 -67 35 08.56 V W68
2024-10-26 19:00:46 C 21 03 23.148 -66 15 04.28 V M22
2024-10-26 19:05:24 C 21 03 23.513 -66 14 55.61 V M22
2024-10-26 19:18:15 C 21 03 24.588 -66 14 29.51 V M22
2024-10-26 19:35:36 C 21 03 26.174 -66 13 54.84 V M22
2024-10-29 01:11:06 C 21 08 14.532 -64 26 22.16 V W68
2024-10-29 01:15:10 C 21 08 14.902 -64 26 13.27 V W68
2024-10-29 01:23:17 C 21 08 15.494 -64 25 56.60 V W68
2024-10-29 01:37:22 C 21 08 16.699 -64 25 27.62 V W68
2024-10-29 01:45:29 C 21 08 17.350 -64 25 12.07 V W68
2024-10-29 01:50:05 C 21 08 17.707 -64 25 02.89 V W68
2024-10-29 01:58:17 C 21 08 18.437 -64 24 45.47 V W68
2024-10-29 02:12:54 C 21 08 19.622 -64 24 16.02 V W68
2024-11-02 03:04:55 C 21 16 33.818 -61 05 58.16 V W68
2024-11-02 03:08:58 C 21 16 34.078 -61 05 50.21 V W68
2024-11-02 03:16:21 C 21 16 34.764 -61 05 34.98 V W68
2024-11-02 03:48:50 C 21 16 37.294 -61 04 26.08 V W68
2024-11-14 00:35:21 C 21 38 34.627 -50 59 32.89 V W68
2024-11-14 00:40:38 C 21 38 34.906 -50 59 21.55 V W68
2024-11-14 00:49:33 C 21 38 35.688 -50 59 01.00 V W68
2024-11-14 01:23:31 C 21 38 38.057 -50 57 47.45 V W68
2024-11-15 18:28:21 C 21 41 35.753 -49 28 35.87 V M22
2024-11-15 18:33:46 C 21 41 36.103 -49 28 23.02 V M22
2024-11-15 18:43:36 C 21 41 36.806 -49 28 02.32 V M22
2024-11-15 19:00:59 C 21 41 38.059 -49 27 22.79 V M22
2024-11-18 00:30:44 C 21 45 25.565 -47 30 44.64 V W68
2024-11-18 00:35:28 C 21 45 25.910 -47 30 34.42 V W68
2024-11-18 00:43:29 C 21 45 26.458 -47 30 16.56 V W68
2024-11-18 00:58:19 C 21 45 27.446 -47 29 43.87 V W68
2024-11-23 19:06:29 C 21 54 58.308 -42 26 42.36 V M22
2024-11-23 19:07:08 C 21 54 58.344 -42 26 41.46 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)