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
2025-08-21 20:59:20 B 05 47 41.309 +86 06 57.67 V A92
2025-08-21 21:14:45 B 05 39 56.179 +86 03 36.97 V A92
2025-08-21 21:27:06 B 05 33 51.905 +86 00 45.43 V A92
2025-08-21 21:31:50 B 05 29 46.464 +85 58 36.59 W Z80
2025-08-21 21:39:55 B 05 25 59.438 +85 56 31.67 W Z80
2025-08-21 21:48:00 B 05 22 16.651 +85 54 23.33 W Z80
2025-08-21 22:09:55 C 05 12 48.682 +85 48 34.09 Z C23
2025-08-21 22:11:59 C 05 11 55.399 +85 47 59.39 Z C23
2025-08-21 22:13:54 C 05 11 04.908 +85 47 25.91 Z C23
2025-08-21 22:15:33 C 05 10 22.481 +85 46 57.36 Z C23
2025-08-21 23:18:18 C 04 45 17.431 +85 27 20.48 Z C23
2025-08-21 23:19:18 C 04 44 55.766 +85 27 01.22 Z C23
2025-08-21 23:20:17 C 04 44 33.857 +85 26 41.64 Z C23
2025-08-21 23:21:29 C 04 44 06.662 +85 26 16.69 Z C23
2025-08-22 03:19:51 V 03 38 57.98 +83 46 00.7 V 270
2025-08-22 03:19:51 v 1 272.08279 +42.83017 270
2025-08-22 03:24:09 V 03 38 11.55 +83 44 10.6 V 270
2025-08-22 03:24:09 v 1 272.08279 +42.83017 270
2025-08-22 03:29:59 V 03 37 07.09 +83 41 40.4 V 270
2025-08-22 03:29:59 v 1 272.08279 +42.83017 270
2025-08-22 03:35:40 V 03 36 04.93 +83 39 11.6 V 270
2025-08-22 03:35:40 v 1 272.08279 +42.83017 270
2025-08-22 19:56:29 C 02 16 51.86 +76 03 05.0 V M31
2025-08-22 19:57:35 C 02 16 49.73 +76 02 38.2 V M31
2025-08-22 19:58:37 C 02 16 47.68 +76 02 11.1 V M31
2025-08-22 19:59:41 C 02 16 45.32 +76 01 39.6 V M31
2025-08-22 20:00:47 C 02 16 43.03 +76 01 08.5 V M31
2025-08-22 20:01:52 C 02 16 41.36 +76 00 45.7 V M31
2025-08-22 20:02:55 C 02 16 39.22 +76 00 16.2 V M31
2025-08-22 20:04:00 C 02 16 37.14 +75 59 48.4 V M31
2025-08-22 20:05:06 C 02 16 35.00 +75 59 21.2 V M31
2025-08-22 20:06:10 C 02 16 32.99 +75 58 52.7 V M31
2025-08-22 20:07:14 C 02 16 30.71 +75 58 24.0 V M31
2025-08-22 21:57:04 C 02 13 22.53 +75 11 27.2 V M32
2025-08-22 21:57:50 C 02 13 21.15 +75 11 07.7 V M32
2025-08-22 21:58:37 C 02 13 19.73 +75 10 48.1 V M32
2025-08-22 21:59:24 C 02 13 18.31 +75 10 28.3 V M32
2025-08-22 22:00:09 C 02 13 16.93 +75 10 08.8 V M32
2025-08-23 23:03:21 C 01 50 10.771 +65 28 20.64 Z C23
2025-08-23 23:05:23 C 01 50 09.526 +65 27 40.86 Z C23
2025-08-23 23:07:01 C 01 50 08.544 +65 27 10.04 Z C23
2025-08-23 23:28:14 C 01 49 56.981 +65 20 17.59 Z C23
2025-08-23 23:29:12 C 01 49 56.302 +65 19 58.80 Z C23
2025-08-23 23:30:26 C 01 49 55.651 +65 19 34.72 Z C23
2025-08-23 23:50:32 C 01 50 01.646 +65 13 03.65 V R17
2025-08-24 00:11:31 C 01 49 50.357 +65 06 27.04 V R17
2025-08-24 00:38:32 C 01 49 35.546 +64 57 57.35 V R17
2025-08-24 00:59:54 C 01 49 23.599 +64 51 14.98 V R17
2025-08-24 18:42:00 B 01 43 07.81 +59 31 28.6 X G02
2025-08-24 18:49:17 B 01 43 06.18 +59 29 37.0 X G02
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)