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
1997-08-27 07:08:12 C 15 46 42.20 -15 47 40.4 a 568
1997-08-27 07:10:43 C 15 46 42.86 -15 47 39.6 a 568
1997-08-28 05:53:19 C 15 53 50.09 -15 45 55.5 a 568
1997-08-28 05:55:48 C 15 53 50.83 -15 45 54.7 a 568
1997-08-28 05:56:47 C 15 53 51.16 -15 45 55.3 a 568
1997-08-28 05:59:16 C 15 53 51.87 -15 45 54.0 a 568
1997-08-29 05:29:56 C 16 01 33.78 -15 43 01.5 a 568
1997-08-29 05:32:27 C 16 01 34.60 -15 43 00.4 a 568
1997-08-29 05:51:12 C 16 01 40.78 -15 42 58.0 a 568
1997-08-29 06:57:53 C 16 02 02.29 -15 42 45.2 a 568
1997-08-29 07:00:22 C 16 02 03.15 -15 42 44.3 a 568
1997-08-29 07:01:20 C 16 02 03.43 -15 42 44.4 a 568
1997-08-29 07:03:50 C 16 02 04.30 -15 42 44.0 a 568
1997-08-30 05:26:33 C 16 09 45.29 -15 38 49.1 a 568
1997-08-30 05:29:04 C 16 09 46.11 -15 38 48.3 a 568
1997-08-30 05:30:03 C 16 09 46.51 -15 38 47.9 a 568
1997-08-30 05:32:34 C 16 09 47.28 -15 38 47.0 a 568
1997-08-30 05:33:35 C 16 09 47.65 -15 38 47.3 a 568
1997-08-30 05:36:04 C 16 09 48.50 -15 38 46.4 a 568
1997-08-30 07:26:04 C 16 10 25.93 -15 38 20.7 a 568
1997-08-30 07:28:33 C 16 10 26.79 -15 38 19.9 a 568
1997-08-30 07:29:32 C 16 10 27.13 -15 38 20.0 a 568
1997-08-30 07:32:01 C 16 10 28.07 -15 38 19.1 a 568
1997-08-30 07:33:03 C 16 10 28.33 -15 38 18.9 a 568
1997-08-30 07:35:32 C 16 10 29.18 -15 38 18.1 a 568
1997-08-30 10:57:19 C 16 11 40.48 -15 36 55.3 z 422
1997-08-30 10:58:52 C 16 11 41.19 -15 36 54.8 z 422
1997-08-30 11:00:23 C 16 11 41.77 -15 36 54.8 z 422
1997-08-30 11:03:57 C 16 11 42.94 -15 36 55.1 z 422
1997-08-31 02:53:32 C 16 17 23.99 -15 33 59.7 z 711
1997-08-31 03:07:23 C 16 17 28.85 -15 33 54.0 z 711
1997-08-31 07:35:06 C 16 19 06.21 -15 32 34.6 a 568
1997-08-31 07:37:37 C 16 19 07.06 -15 32 34.0 a 568
1997-08-31 07:38:34 C 16 19 07.50 -15 32 33.4 a 568
1997-08-31 07:41:05 C 16 19 08.39 -15 32 32.9 a 568
1997-09-01 02:13:35 C 16 26 05.06 -15 27 14.2 z 711
1997-09-01 02:18:15 C 16 26 06.76 -15 27 12.7 z 711
1997-09-01 02:23:31 C 16 26 08.74 -15 27 10.8 z 711
1997-09-02 02:11:16 C 16 35 22.48 -15 18 38.8 z 711
1997-09-02 02:16:02 C 16 35 24.23 -15 18 36.5 z 711
1997-09-02 02:20:49 C 16 35 26.08 -15 18 34.8 z 711
1997-09-02 03:39:27 C 16 35 56.73 -15 18 03.0 b 709
1997-09-02 03:44:34 C 16 35 58.62 -15 18 00.3 b 709
1997-09-02 03:48:24 C 16 36 00.16 -15 17 59.3 b 709
1997-09-19 11:16:29 C 19 55 02.98 -07 14 13.5 360
1997-09-19 11:20:15 C 19 55 04.67 -07 14 06.9 360
1997-09-19 11:24:00 C 19 55 06.35 -07 14 01.1 360
1997-09-21 18:22:58 C 20 19 34.76 -05 45 06.0 z 118
1997-09-21 18:28:57 C 20 19 37.24 -05 44 55.9 z 118
1997-09-21 18:34:54 C 20 19 39.73 -05 44 47.0 z 118
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)