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
2025-09-03 20:42:43 C 01 26 33.07 +33 42 09.7 Y 557
2025-09-03 21:01:50 B 01 26 31.31 +33 41 43.3 X L76
2025-09-03 21:10:03 B 01 26 30.93 +33 41 24.0 X L76
2025-09-03 21:17:45 B 01 26 30.57 +33 41 05.8 X L76
2025-09-03 21:24:57 B 01 26 30.24 +33 40 48.7 X L76
2025-09-03 21:52:20 C 01 26 30.45 +33 39 27.5 Y 557
2025-09-03 22:57:52 C 01 26 27.63 +33 36 54.0 Y 557
2025-09-04 00:05:26 C 01 26 24.43 +33 34 13.9 Y 557
2025-09-04 00:58:13 C 01 26 21.81 +33 32 07.2 Y 557
2025-09-04 01:43:12 C 01 26 19.027 +33 30 19.48 q 056
2025-09-04 01:46:56 C 01 26 18.862 +33 30 10.91 q 056
2025-09-04 01:47:21 C 01 26 19.33 +33 30 08.2 Y 557
2025-09-04 01:50:42 C 01 26 18.674 +33 30 02.34 q 056
2025-09-04 01:54:27 C 01 26 18.490 +33 29 52.51 q 056
2025-09-04 02:16:56 C 01 26 17.328 +33 28 56.53 q 056
2025-09-04 02:20:41 C 01 26 17.141 +33 28 47.21 q 056
2025-09-04 02:24:25 C 01 26 16.963 +33 28 38.68 q 056
2025-09-04 02:28:11 C 01 26 16.764 +33 28 28.81 q 056
2025-09-04 02:38:34 C 01 26 16.78 +33 28 02.9 Y 557
2025-09-04 11:02:01 C 01 26 08.287 +33 08 57.91 V T08
2025-09-04 11:07:58 C 01 26 07.963 +33 08 44.70 V T08
2025-09-04 11:17:25 C 01 26 07.423 +33 08 23.60 V T08
2025-09-04 11:41:53 C 01 26 06.007 +33 07 28.92 V T08
2025-09-04 21:14:34 B 01 25 52.956 +32 44 39.46 W G34
2025-09-04 21:29:24 B 01 25 52.403 +32 44 08.43 W G34
2025-09-04 21:37:52 B 01 25 52.105 +32 43 51.00 W G34
2025-09-04 21:57:07 B 01 25 49.89 +32 43 26.7 X L76
2025-09-04 22:02:16 B 01 25 49.62 +32 43 15.8 X L76
2025-09-04 22:07:24 B 01 25 49.41 +32 43 04.8 X L76
2025-09-04 22:12:33 B 01 25 49.15 +32 42 53.7 X L76
2025-09-04 22:17:43 B 01 25 48.91 +32 42 42.5 X L76
2025-09-04 22:22:52 B 01 25 48.66 +32 42 31.6 X L76
2025-09-05 01:17:00 C 01 25 41.897 +32 36 09.00 q 056
2025-09-05 01:35:44 C 01 25 40.985 +32 35 27.49 q 056
2025-09-05 01:39:30 C 01 25 40.788 +32 35 19.18 q 056
2025-09-05 01:54:29 C 01 25 40.080 +32 34 45.95 q 056
2025-09-05 01:58:15 C 01 25 39.934 +32 34 38.39 q 056
2025-09-05 02:16:03 C 01 25 40.375 +32 33 57.60 Z C23
2025-09-05 02:18:06 C 01 25 40.262 +32 33 52.67 Z C23
2025-09-05 03:48:55 C 01 25 36.058 +32 30 33.37 Z C23
2025-09-05 03:50:35 C 01 25 35.976 +32 30 29.63 Z C23
2025-09-05 10:08:06 C 01 25 32.789 +32 17 48.44 V T05
2025-09-05 10:13:29 C 01 25 32.510 +32 17 37.68 V T05
2025-09-05 11:00:44 C 01 25 30.072 +32 16 04.22 V T05
2025-09-05 11:41:24 C 01 25 27.847 +32 14 42.61 V T05
2025-09-05 21:36:24 C 01 25 14.455 +31 53 22.38 Z C23
2025-09-05 21:38:07 C 01 25 14.388 +31 53 18.82 Z C23
2025-09-05 22:02:49 B 01 25 11.73 +31 52 51.6 X L76
2025-09-05 22:07:57 B 01 25 11.50 +31 52 41.7 X L76
2025-09-05 22:13:05 B 01 25 11.26 +31 52 31.5 X L76
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)