1997 QK1

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6464564851 ± 2.23e-09
Semi-major axis (a)2.7831080593 AU ± 9.82e-09
Inclination (i)2.85157676° ± 8.08e-07
Long. of Asc. Node (Ω)306.46998690° ± 6.95e-06
Arg. of Perihelion (ω)3.20882168° ± 7.41e-06
Mean Anomaly (M)22.59403957° ± 3.29e-07
Mean Motion (n)0.2122839562°/day ± 1.12e-09
Perihelion dist (q)0.98394981 AU ± 7.12e-09
Aphelion dist (Q)4.58226631 AU ± 1.73e-08
Orbital Period4.64296172 yr ± 2.46e-08
NGA Modelr2
A2-3.21088531e-14 ± 1.35e-14 AU/d²
Physical Parameters
H (abs. magnitude)20.26
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.250″
Uncertainty0
Orbit TypeApollo
MOID0.017116 AU
Observations Used662
Radar Obs Used9
Oppositions22
Arc Total1997-2025
First Observation Used1997-08-27
Last Observation Used2025-11-13
Observations (726)
Date Type RA Dec Mag Band Observatory
2025-08-26 22:32:04 C 01 34 58.66 +48 55 24.9 V M32
2025-08-26 22:33:34 C 01 34 58.45 +48 55 11.2 V M32
2025-08-27 19:44:26 C 01 33 17.84 +45 54 59.5 Y 557
2025-08-27 20:15:56 C 01 33 15.70 +45 51 11.4 Y 557
2025-08-27 20:45:59 C 01 33 13.42 +45 47 34.8 Y 557
2025-08-27 20:49:25 C 01 33 13.11 +45 47 24.8 V M32
2025-08-27 20:50:55 C 01 33 12.98 +45 47 14.0 V M32
2025-08-27 20:52:24 C 01 33 12.86 +45 47 03.2 V M32
2025-08-27 20:53:54 C 01 33 12.72 +45 46 52.5 V M32
2025-08-27 20:55:24 C 01 33 12.60 +45 46 41.8 V M32
2025-08-27 21:10:17 C 01 33 11.47 +45 44 39.8 Y 557
2025-08-27 21:55:18 B 01 33 05.56 +45 39 34.0 X L99
2025-08-27 21:56:54 B 01 33 05.40 +45 39 24.3 X L99
2025-08-27 21:58:30 B 01 33 05.24 +45 39 11.0 X L99
2025-08-27 21:59:50 B 01 33 05.11 +45 39 01.4 X L99
2025-08-27 22:00:54 B 01 33 05.10 +45 38 54.7 X L99
2025-08-27 22:01:58 B 01 33 04.94 +45 38 47.3 X L99
2025-08-27 23:45:48 C 01 32 56.42 +45 26 06.2 Y 557
2025-08-28 00:15:52 C 01 32 53.13 +45 22 30.6 Y 557
2025-08-28 00:45:19 C 01 32 49.86 +45 18 58.8 Y 557
2025-08-28 01:16:06 C 01 32 46.36 +45 15 17.5 Y 557
2025-08-28 01:46:09 C 01 32 42.93 +45 11 40.9 Y 557
2025-08-28 02:14:33 C 01 32 39.68 +45 08 15.5 Y 557
2025-08-28 02:48:54 C 01 32 35.79 +45 04 06.6 Y 557
2025-08-28 20:41:47 C 01 31 44.77 +43 04 00.9 V M32
2025-08-28 20:43:17 C 01 31 44.66 +43 03 51.9 V M32
2025-08-28 20:45:06 C 01 31 44.54 +43 03 41.4 V M32
2025-08-28 20:46:37 C 01 31 44.43 +43 03 32.5 V M32
2025-08-28 20:48:45 C 01 31 44.28 +43 03 20.2 V M32
2025-08-28 21:39:10 C 01 31 41.246 +42 57 58.75 Z C23
2025-08-28 21:43:47 C 01 31 40.966 +42 57 31.75 Z C23
2025-08-28 21:58:30 C 01 31 39.965 +42 56 06.07 Z C23
2025-08-28 22:02:21 C 01 31 39.720 +42 55 43.72 Z C23
2025-08-28 22:58:56 C 01 31 34.01 +42 50 43.1 Z L04
2025-08-28 23:03:31 C 01 31 33.60 +42 50 16.2 Z L04
2025-08-28 23:08:06 C 01 31 33.19 +42 49 49.3 Z L04
2025-08-29 20:44:02 C 01 30 33.72 +40 48 44.8 V M32
2025-08-29 20:46:35 C 01 30 33.58 +40 48 32.4 V M32
2025-08-29 20:49:09 C 01 30 33.43 +40 48 20.2 V M32
2025-08-29 20:51:43 C 01 30 33.28 +40 48 07.8 V M32
2025-08-29 20:54:37 C 01 30 33.10 +40 47 53.3 V M32
2025-08-29 21:19:28 C 01 30 32.083 +40 45 29.05 Z C23
2025-08-29 21:20:43 C 01 30 31.978 +40 45 23.98 Z C23
2025-08-29 21:22:21 C 01 30 31.800 +40 45 16.09 Z C23
2025-08-29 21:24:00 C 01 30 31.790 +40 45 06.95 Z C23
2025-08-30 11:55:40 C 01 29 51.480 +39 36 47.27 V T05
2025-08-30 12:10:43 C 01 29 50.030 +39 35 43.01 V T08
2025-08-30 12:13:20 C 01 29 49.915 +39 35 28.25 V T05
2025-08-30 12:14:41 C 01 29 49.682 +39 35 25.30 V T08
2025-08-30 12:23:01 C 01 29 48.931 +39 34 47.93 V T08
Radar Observations (9)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2025-08-15 00:20:00 466498.317 2 Hz 8560 -14 -14
2025-08-15 00:50:00 463286.158 2 Hz 8560 -14 -14
2025-08-15 01:20:00 36485008.073 20 us 8560 -14 -14
2025-08-15 02:00:00 36356530.241 2 us 8560 -14 -14
2025-08-17 01:30:00 27686626.8 1 us 8560 -14 -14
2025-08-19 01:50:00 190642.014 0.5 Hz 8560 -14 -14
2025-08-19 02:50:00 21397165.78 0.375 us 8560 -14 -14
2025-08-21 10:30:00 20857634.07 0.3 us 8560 -14 -14
2025-08-23 08:10:00 25919414.9 0.2 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)