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
2025-08-30 12:37:01 C 01 29 47.664 +39 33 44.93 V T08
2025-08-30 12:40:14 C 01 29 47.498 +39 33 27.40 V T05
2025-08-30 12:44:12 C 01 29 47.146 +39 33 09.47 V T05
2025-08-30 21:56:29 B 01 29 29.43 +38 50 54.8 X L99
2025-08-30 21:58:59 B 01 29 29.26 +38 50 45.1 X L99
2025-08-30 22:01:29 B 01 29 29.10 +38 50 35.3 X L99
2025-08-30 22:03:59 B 01 29 29.00 +38 50 24.8 X L99
2025-08-30 22:06:29 B 01 29 28.86 +38 50 14.3 X L99
2025-08-30 22:08:59 B 01 29 28.72 +38 50 03.4 X L99
2025-08-30 23:30:03 C 01 29 30.396 +38 44 38.44 V R17
2025-08-30 23:56:38 C 01 29 28.841 +38 42 54.14 V R17
2025-08-31 00:17:36 C 01 29 27.554 +38 41 31.42 V R17
2025-08-31 00:38:36 C 01 29 26.184 +38 40 08.47 V R17
2025-08-31 08:38:14 C 01 29 04.837 +38 07 32.23 V 703
2025-08-31 08:41:15 C 01 29 04.607 +38 07 20.14 V 703
2025-08-31 08:44:16 C 01 29 04.384 +38 07 08.29 V 703
2025-08-31 08:47:06 C 01 29 04.74 +38 06 13.7 V U55
2025-08-31 08:47:18 C 01 29 04.124 +38 06 56.66 V 703
2025-08-31 09:02:06 C 01 29 03.79 +38 05 15.9 V U55
2025-08-31 11:33:39 C 01 28 59.254 +37 56 25.69 V T08
2025-08-31 11:47:25 C 01 28 58.183 +37 55 33.53 V T08
2025-08-31 11:52:45 C 01 28 57.761 +37 55 13.22 V T08
2025-08-31 12:08:58 C 01 28 56.462 +37 54 11.77 V T08
2025-08-31 20:10:26 C 01 28 44.19 +37 21 45.5 Y 557
2025-08-31 21:06:10 C 01 28 41.95 +37 18 31.6 Y 557
2025-08-31 22:01:30 C 01 28 39.35 +37 15 19.4 Y 557
2025-08-31 22:59:20 C 01 28 36.28 +37 11 57.8 Y 557
2025-08-31 23:58:49 C 01 28 32.82 +37 08 29.2 Y 557
2025-09-01 11:43:24 C 01 28 10.560 +36 28 28.20 V T05
2025-09-01 11:48:50 C 01 28 10.181 +36 28 10.49 V T05
2025-09-01 12:00:48 C 01 28 09.322 +36 27 31.14 V T05
2025-09-01 12:38:57 C 01 28 06.554 +36 25 25.14 V T05
2025-09-01 18:34:56 B 01 28 02.695 +36 05 03.59 Z M69
2025-09-01 18:38:43 B 01 28 02.510 +36 04 52.25 Z M69
2025-09-01 18:42:08 B 01 28 02.354 +36 04 42.20 Z M69
2025-09-01 22:25:18 C 01 27 51.715 +35 52 18.88 q 056
2025-09-01 22:32:32 C 01 27 51.355 +35 51 56.88 q 056
2025-09-01 22:39:46 C 01 27 50.974 +35 51 35.28 q 056
2025-09-01 22:47:02 C 01 27 50.590 +35 51 12.78 q 056
2025-09-01 22:54:16 C 01 27 50.201 +35 50 50.53 q 056
2025-09-01 23:01:32 C 01 27 49.812 +35 50 28.61 q 056
2025-09-02 21:16:52 B 01 27 14.170 +34 43 59.30 W J37
2025-09-02 21:29:05 B 01 27 13.774 +34 43 28.42 W J37
2025-09-02 21:55:34 B 01 27 12.914 +34 42 20.77 W J37
2025-09-02 22:16:38 B 01 27 12.154 +34 41 26.56 W J37
2025-09-02 23:11:49 C 01 27 11.112 +34 39 10.69 V R17
2025-09-02 23:32:12 C 01 27 10.222 +34 38 18.89 V R17
2025-09-02 23:52:44 C 01 27 09.283 +34 37 26.33 V R17
2025-09-03 00:13:09 C 01 27 08.297 +34 36 34.20 V R17
2025-09-03 19:51:30 C 01 26 34.69 +33 44 08.8 Y 557
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)