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
2024-12-18 19:25:11 C 22 33 09.727 -20 38 01.61 V M22
2024-12-22 00:55:57 C 22 37 48.202 -17 53 28.68 V W68
2024-12-22 01:00:37 C 22 37 48.533 -17 53 18.06 V W68
2024-12-22 01:14:44 C 22 37 49.318 -17 52 49.15 V W68
2024-12-22 01:28:54 C 22 37 50.122 -17 52 18.59 V W68
2024-12-24 01:28:05 C 22 40 41.128 -16 11 17.81 V 703
2024-12-24 01:31:29 C 22 40 41.344 -16 11 09.42 V 703
2024-12-24 01:38:16 C 22 40 41.725 -16 10 56.03 V 703
2024-12-26 01:27:38 C 22 43 30.781 -14 30 38.66 V 703
2024-12-26 01:31:03 C 22 43 30.850 -14 30 31.64 V 703
2024-12-26 01:34:29 C 22 43 31.148 -14 30 24.48 V 703
2024-12-26 01:37:55 C 22 43 31.300 -14 30 16.85 V 703
2024-12-28 05:30:38 C 22 46 33.358 -12 42 05.94 V T05
2024-12-28 05:36:39 C 22 46 33.718 -12 41 53.95 V T05
2024-12-28 05:44:03 C 22 46 34.123 -12 41 38.44 V T05
2024-12-28 05:58:40 C 22 46 34.927 -12 41 08.41 V T05
2025-01-02 02:02:17 C 22 53 17.927 -08 41 34.04 V 703
2025-01-02 02:05:37 C 22 53 18.078 -08 41 28.03 V 703
2025-01-02 02:08:57 C 22 53 18.244 -08 41 19.50 V 703
2025-01-02 02:12:17 C 22 53 18.438 -08 41 13.70 V 703
2025-01-12 01:44:06 C 23 06 50.411 -00 37 04.94 V G96
2025-01-12 01:55:50 C 23 06 51.030 -00 36 41.65 V G96
2025-01-12 02:03:19 C 23 06 51.440 -00 36 26.82 V G96
2025-01-12 02:10:50 C 23 06 51.847 -00 36 11.70 V G96
2025-01-13 01:41:14 C 23 08 10.115 +00 10 35.54 V G96
2025-01-13 01:47:40 C 23 08 10.442 +00 10 48.32 V G96
2025-01-13 01:54:06 C 23 08 10.792 +00 11 00.85 V G96
2025-01-13 02:00:34 C 23 08 11.152 +00 11 13.78 V G96
2025-01-13 02:07:46 C 23 08 11.400 +00 11 27.42 V 703
2025-01-13 02:17:47 C 23 08 11.897 +00 11 47.87 V 703
2025-01-15 05:08:42 C 23 11 00.353 +01 52 35.94 V T08
2025-01-15 05:14:38 C 23 11 00.689 +01 52 47.64 V T08
2025-01-15 05:22:34 C 23 11 01.111 +01 53 03.70 V T08
2025-01-15 05:40:29 C 23 11 02.016 +01 53 38.62 V T08
2025-01-19 02:22:02 C 23 16 06.085 +04 55 51.64 V 703
2025-01-19 02:25:01 C 23 16 06.193 +04 55 57.90 V 703
2025-01-19 02:28:00 C 23 16 06.452 +04 56 03.26 V 703
2025-01-19 02:30:58 C 23 16 06.546 +04 56 09.13 V 703
2025-01-21 02:01:11 C 23 18 41.015 +06 28 52.68 V 703
2025-01-21 02:04:30 C 23 18 41.216 +06 28 58.40 V 703
2025-01-21 02:07:48 C 23 18 41.346 +06 29 04.96 V 703
2025-01-21 02:11:06 C 23 18 41.519 +06 29 11.87 V 703
2025-01-27 02:27:59 C 23 26 25.361 +11 08 05.96 V 703
2025-01-27 02:36:49 C 23 26 25.991 +11 08 23.78 V 703
2025-02-01 02:43:17 C 23 32 46.928 +14 57 45.25 V 703
2025-02-01 02:46:38 C 23 32 47.141 +14 57 51.66 V 703
2025-02-01 02:49:59 C 23 32 47.260 +14 57 58.25 V 703
2025-02-01 02:53:19 C 23 32 47.519 +14 58 03.22 V 703
2025-02-02 02:33:17 C 23 34 02.140 +15 42 58.54 V 703
2025-02-02 02:36:26 C 23 34 02.255 +15 43 04.87 V 703
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)