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
2024-05-18 10:18:04 C 00 50 23.678 -68 47 23.06 V W68
2024-05-20 03:22:02 C 01 05 44.201 -69 06 59.98 V M22
2024-05-20 03:27:04 C 01 05 46.118 -69 07 01.81 V M22
2024-05-20 03:55:00 C 01 05 56.405 -69 07 14.77 V M22
2024-05-20 03:59:57 C 01 05 58.217 -69 07 17.26 V M22
2024-05-26 09:28:24 C 02 00 12.142 -69 48 09.58 V W68
2024-05-26 09:33:13 C 02 00 13.690 -69 48 10.44 V W68
2024-05-26 10:00:17 C 02 00 22.997 -69 48 15.80 V W68
2024-05-26 10:17:18 C 02 00 28.944 -69 48 18.76 V W68
2024-06-07 09:49:16 C 03 30 19.788 -69 37 59.88 V W68
2024-06-07 10:17:32 C 03 30 27.334 -69 37 57.36 V W68
2024-06-07 10:33:04 C 03 30 31.495 -69 37 54.59 V W68
2024-06-07 10:38:37 C 03 30 33.079 -69 37 53.94 V W68
2024-07-17 09:42:47 C 06 24 05.062 -68 54 28.91 V W68
2024-07-17 09:45:22 C 06 24 05.273 -68 54 29.74 V W68
2024-07-17 10:08:56 C 06 24 08.244 -68 54 34.81 V W68
2024-07-17 10:17:33 C 06 24 09.276 -68 54 36.90 V W68
2024-08-08 03:19:36 C 07 24 04.512 -72 13 36.12 V M22
2024-08-08 03:36:09 C 07 24 06.216 -72 13 45.16 V M22
2024-08-08 03:37:28 C 07 24 06.300 -72 13 46.16 V M22
2024-08-08 03:42:25 C 07 24 06.926 -72 13 49.26 V M22
2024-08-08 03:56:53 C 07 24 08.400 -72 13 57.47 V M22
2024-08-08 04:01:04 C 07 24 08.772 -72 13 59.95 V M22
2024-08-08 04:17:02 C 07 24 10.630 -72 14 10.21 V M22
2024-08-10 09:50:20 C 07 30 01.404 -72 45 26.06 V W68
2024-08-10 09:56:33 C 07 30 02.112 -72 45 29.38 V W68
2024-08-10 10:19:15 C 07 30 04.322 -72 45 43.92 V W68
2024-08-10 10:24:54 C 07 30 04.819 -72 45 47.48 V W68
2024-08-31 08:16:14 C 08 29 59.995 -79 18 57.64 V W68
2024-08-31 09:27:07 C 08 30 10.392 -79 20 07.37 V W68
2024-08-31 09:33:18 C 08 30 11.518 -79 20 14.06 V W68
2024-08-31 09:58:39 C 08 30 14.899 -79 20 39.01 V W68
2024-08-31 10:04:59 C 08 30 15.881 -79 20 45.38 V W68
2024-09-24 19:53:25 C 16 50 42.958 -87 32 41.39 V M22
2024-09-24 21:22:18 C 16 53 32.047 -87 31 24.42 V M22
2024-09-24 21:30:55 C 16 53 48.127 -87 31 16.54 V M22
2024-09-24 21:34:55 C 16 53 55.260 -87 31 12.29 V M22
2024-09-24 21:52:13 C 16 54 27.960 -87 30 58.03 V M22
2024-10-02 19:55:09 C 19 33 26.760 -83 23 25.98 V M22
2024-10-02 19:59:52 C 19 33 27.598 -83 23 20.58 V M22
2024-10-02 20:07:18 C 19 33 30.048 -83 23 07.62 V M22
2024-10-02 20:22:31 C 19 33 34.963 -83 22 42.60 V M22
2024-10-05 02:14:11 C 19 49 59.779 -81 58 37.06 V W68
2024-10-05 02:47:24 C 19 50 08.458 -81 57 42.80 V W68
2024-10-05 02:51:59 C 19 50 09.468 -81 57 35.96 V W68
2024-10-05 02:59:57 C 19 50 11.678 -81 57 23.15 V W68
2024-10-09 00:45:35 C 20 10 52.522 -79 23 28.50 V W68
2024-10-09 01:00:33 C 20 10 55.368 -79 23 04.13 V W68
2024-10-09 01:13:04 C 20 10 57.170 -79 22 42.38 V W68
2024-10-09 01:27:37 C 20 10 59.892 -79 22 17.08 V W68
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)