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
2025-04-28 22:48:02 C 06 33 13.95 +61 48 36.7 V M32
2025-04-28 22:48:23 C 06 33 14.25 +61 48 35.6 V M32
2025-04-28 22:54:21 C 06 33 17.87 +61 48 17.9 V M32
2025-04-28 22:54:40 C 06 33 18.26 +61 48 16.1 V M32
2025-04-28 22:55:20 C 06 33 18.63 +61 48 14.8 V M32
2025-04-28 22:56:01 C 06 33 18.99 +61 48 11.4 V M32
2025-04-28 22:56:21 C 06 33 19.21 +61 48 11.6 V M32
2025-04-28 22:57:00 C 06 33 19.73 +61 48 08.4 V M32
2025-04-29 03:05:52 C 06 35 53.754 +61 35 08.59 V 703
2025-04-29 03:06:37 C 06 35 54.078 +61 35 06.29 V 703
2025-04-29 03:09:19 C 06 35 55.792 +61 34 57.32 V 703
2025-04-29 03:10:03 C 06 35 56.173 +61 34 55.20 V 703
2025-04-29 03:12:45 C 06 35 57.937 +61 34 45.95 V 703
2025-04-29 03:13:29 C 06 35 58.322 +61 34 43.93 V 703
2025-04-29 03:16:11 C 06 36 00.050 +61 34 34.61 V 703
2025-04-29 03:16:56 C 06 36 00.439 +61 34 32.16 V 703
2025-04-29 20:50:38 C 06 46 39.950 +60 34 47.64 Z C23
2025-04-29 21:40:22 C 06 47 09.485 +60 31 48.76 Z C23
2025-04-29 22:16:39 C 06 47 31.034 +60 29 37.97 Z C23
2025-04-30 18:22:07 B 06 59 08.76 +59 15 00.5 X L76
2025-04-30 18:25:41 B 06 59 10.79 +59 14 46.8 X L76
2025-04-30 18:29:16 B 06 59 12.77 +59 14 32.6 X L76
2025-04-30 18:32:50 B 06 59 14.79 +59 14 18.6 X L76
2025-04-30 18:36:25 B 06 59 16.77 +59 14 04.6 X L76
2025-04-30 18:40:00 B 06 59 18.76 +59 13 50.6 X L76
2025-04-30 18:43:34 B 06 59 20.79 +59 13 36.5 X L76
2025-04-30 18:47:08 B 06 59 22.80 +59 13 22.4 X L76
2025-04-30 18:50:42 B 06 59 24.81 +59 13 08.4 X L76
2025-04-30 20:08:52 B 07 00 08.863 +59 08 08.95 q M04
2025-04-30 20:30:18 B 07 00 20.911 +59 06 43.81 q M04
2025-04-30 20:45:37 C 07 00 29.45 +59 05 36.9 V M32
2025-04-30 20:46:25 B 07 00 29.935 +59 05 39.95 q M04
2025-04-30 20:47:50 C 07 00 30.67 +59 05 28.4 V M32
2025-04-30 20:49:43 C 07 00 31.74 +59 05 20.9 V M32
2025-04-30 20:51:36 C 07 00 32.75 +59 05 13.3 V M32
2025-04-30 20:53:49 C 07 00 34.05 +59 05 04.3 V M32
2025-04-30 20:59:30 B 07 00 37.265 +59 04 47.93 q M04
2025-05-01 23:54:38 C 07 15 12.88 +57 13 32.4 V M32
2025-05-01 23:55:14 C 07 15 13.14 +57 13 29.1 V M32
2025-05-02 00:00:02 C 07 15 15.78 +57 13 08.2 V M32
2025-05-02 00:02:08 C 07 15 16.92 +57 13 00.2 V M32
2025-05-02 00:02:45 C 07 15 17.09 +57 12 55.9 V M32
2025-05-02 00:03:03 C 07 15 17.40 +57 12 54.5 V M32
2025-05-02 00:03:21 C 07 15 17.47 +57 12 54.3 V M32
2025-05-02 00:03:38 C 07 15 17.65 +57 12 52.1 V M32
2025-05-02 20:50:34 B 07 25 49.86 +55 39 56.7 X L99
2025-05-02 20:53:25 B 07 25 51.28 +55 39 44.1 X L99
2025-05-02 20:56:35 B 07 25 52.86 +55 39 28.5 X L99
2025-05-02 21:22:27 B 07 26 05.820 +55 37 34.46 W Z80
2025-05-02 21:28:32 B 07 26 08.801 +55 37 05.52 W Z80
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)