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
2025-09-16 10:10:08 C 01 18 25.933 +26 06 27.18 X F52
2025-09-16 10:27:28 C 01 18 25.164 +26 06 10.41 X F52
2025-09-16 11:02:16 C 01 18 23.599 +26 05 36.47 X F52
2025-09-16 13:06:26 C 01 18 17.873 +26 03 32.08 V T08
2025-09-16 13:10:38 C 01 18 17.686 +26 03 27.97 V T08
2025-09-16 13:54:03 C 01 18 15.749 +26 02 42.40 V T08
2025-09-16 14:06:11 C 01 18 15.230 +26 02 29.62 V T08
2025-09-17 10:10:33 C 01 17 44.260 +25 42 38.72 X F52
2025-09-17 10:29:12 C 01 17 43.437 +25 42 21.33 X F52
2025-09-17 11:06:40 C 01 17 41.758 +25 41 45.94 X F52
2025-09-17 23:33:13 C 01 17 20.165 +25 29 22.85 X B67
2025-09-17 23:36:49 C 01 17 20.023 +25 29 19.46 X B67
2025-09-17 23:40:25 C 01 17 19.877 +25 29 16.12 X B67
2025-09-18 10:30:49 C 01 17 01.346 +25 19 23.52 V T05
2025-09-18 10:35:38 C 01 17 01.123 +25 19 19.34 V T05
2025-09-18 10:42:09 C 01 17 00.898 +25 19 12.94 V T05
2025-09-18 10:51:59 C 01 17 00.382 +25 19 04.33 V T05
2025-09-18 21:23:36 B 01 16 43.068 +25 08 50.03 V 160
2025-09-18 21:30:03 B 01 16 42.818 +25 08 44.38 V 160
2025-09-18 21:36:57 B 01 16 42.557 +25 08 38.15 V 160
2025-09-20 06:09:28 B 01 15 43.44 +24 39 16.9 Z W37
2025-09-20 06:47:32 B 01 15 41.87 +24 38 43.1 Z W37
2025-09-21 00:25:53 C 01 15 12.314 +24 23 24.76 V R17
2025-09-21 00:45:27 C 01 15 11.486 +24 23 08.63 V R17
2025-09-21 01:05:07 C 01 15 10.632 +24 22 52.25 V R17
2025-09-21 01:24:41 C 01 15 09.816 +24 22 35.54 V R17
2025-09-21 08:18:59 C 01 14 57.016 +24 16 35.04 V 703
2025-09-21 08:22:22 C 01 14 56.886 +24 16 32.27 V 703
2025-09-21 08:25:52 C 01 14 56.735 +24 16 29.57 V 703
2025-09-21 08:29:12 C 01 14 56.573 +24 16 26.29 V 703
2025-09-22 12:02:40 C 01 14 07.322 +23 53 16.91 V T08
2025-09-22 12:08:00 C 01 14 07.078 +23 53 12.26 V T08
2025-09-22 12:15:40 C 01 14 06.742 +23 53 05.64 V T08
2025-09-23 08:43:37 C 01 13 31.048 +23 36 03.64 V 703
2025-09-23 08:46:56 C 01 13 30.911 +23 36 00.68 V 703
2025-09-23 08:50:13 C 01 13 30.763 +23 35 58.06 V 703
2025-09-23 08:53:29 C 01 13 30.608 +23 35 55.25 V 703
2025-09-23 10:41:55 C 01 13 28.337 +23 34 35.72 V T05
2025-09-23 10:44:34 C 01 13 28.255 +23 34 33.60 V T05
2025-09-23 11:18:20 C 01 13 26.820 +23 34 06.42 V T05
2025-09-23 12:00:31 C 01 13 25.032 +23 33 32.11 V T05
2025-09-24 07:56:17 C 01 12 50.738 +23 17 20.22 V 703
2025-09-24 07:59:37 C 01 12 50.591 +23 17 17.77 V 703
2025-09-24 08:02:52 C 01 12 50.479 +23 17 14.96 V 703
2025-09-24 08:06:07 C 01 12 50.288 +23 17 12.26 V 703
2025-09-25 09:57:09 C 01 12 06.096 +22 56 59.28 V T05
2025-09-25 09:59:46 C 01 12 06.007 +22 56 57.37 V T05
2025-09-25 10:04:33 C 01 12 05.789 +22 56 53.92 V T05
2025-09-25 10:05:12 C 01 12 05.765 +22 56 52.98 V T05
2025-09-25 10:10:02 C 01 12 05.549 +22 56 49.52 V T05
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)