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
2025-08-24 18:56:24 B 01 43 04.54 +59 27 47.7 X G02
2025-08-24 19:57:14 C 01 42 50.63 +59 12 28.5 V M32
2025-08-24 19:58:06 C 01 42 50.39 +59 12 15.8 V M32
2025-08-24 19:58:58 C 01 42 50.17 +59 12 02.7 V M32
2025-08-24 19:59:51 C 01 42 49.92 +59 11 49.6 V M32
2025-08-24 20:01:09 C 01 42 49.63 +59 11 29.5 V M32
2025-08-24 21:05:17 B 01 42 30.49 +58 55 35.8 X L99
2025-08-24 21:06:31 B 01 42 30.09 +58 55 16.5 X L99
2025-08-24 21:07:46 B 01 42 29.65 +58 54 56.8 X L99
2025-08-24 21:37:05 C 01 42 24.170 +58 46 33.38 Z C23
2025-08-24 21:38:19 C 01 42 23.825 +58 46 14.99 Z C23
2025-08-24 21:39:48 C 01 42 23.354 +58 45 53.35 Z C23
2025-08-24 21:40:45 C 01 42 23.225 +58 45 38.77 Z C23
2025-08-24 21:42:14 C 01 42 22.891 +58 45 16.63 Z C23
2025-08-25 01:19:42 C 01 41 20.51 +57 51 54.7 V D48
2025-08-25 01:23:18 C 01 41 19.39 +57 51 01.8 V D48
2025-08-25 01:26:54 C 01 41 18.29 +57 50 08.7 V D48
2025-08-25 01:44:29 C 01 41 12.89 +57 45 50.7 V D48
2025-08-25 02:38:14 B 01 40 55.656 +57 32 23.82 V L65
2025-08-25 02:43:10 B 01 40 54.168 +57 31 11.60 V L65
2025-08-25 02:47:39 B 01 40 52.860 +57 30 05.08 V L65
2025-08-25 05:56:24 C 01 40 34.69 +56 42 40.5 q U55
2025-08-25 06:12:08 C 01 40 31.34 +56 39 08.0 q U55
2025-08-25 06:27:00 C 01 40 28.17 +56 35 46.2 q U55
2025-08-25 19:45:59 C 01 38 10.210 +53 39 28.98 Z C23
2025-08-25 19:47:14 C 01 38 10.078 +53 39 14.65 Z C23
2025-08-25 19:48:52 C 01 38 09.830 +53 38 55.10 Z C23
2025-08-25 19:50:32 C 01 38 09.634 +53 38 35.84 Z C23
2025-08-25 20:02:24 C 01 38 10.661 +53 36 45.04 X M19
2025-08-25 20:08:19 C 01 38 09.946 +53 35 34.76 X M19
2025-08-25 20:16:14 C 01 38 08.662 +53 34 04.69 X M19
2025-08-25 21:43:50 B 01 37 53.738 +53 16 32.74 W Z80
2025-08-25 21:47:54 B 01 37 53.098 +53 15 46.30 W Z80
2025-08-25 21:51:57 B 01 37 52.514 +53 15 00.00 W Z80
2025-08-25 22:05:14 C 01 37 48.92 +53 13 21.6 V M32
2025-08-25 22:06:20 C 01 37 48.72 +53 13 08.9 V M32
2025-08-25 22:07:25 C 01 37 48.52 +53 12 56.5 V M32
2025-08-25 22:08:30 C 01 37 48.32 +53 12 44.1 V M32
2025-08-25 22:09:35 C 01 37 48.12 +53 12 31.7 V M32
2025-08-25 22:47:44 V 01 37 44.41 +53 04 29.1 V 270
2025-08-25 22:47:44 v 1 359.62633 +49.20368 270
2025-08-25 23:05:45 V 01 37 41.39 +53 01 05.2 V 270
2025-08-25 23:05:45 v 1 359.62633 +49.20368 270
2025-08-25 23:16:32 V 01 37 39.50 +52 59 03.5 V 270
2025-08-25 23:16:32 v 1 359.62633 +49.20368 270
2025-08-25 23:25:26 V 01 37 38.08 +52 57 26.7 V 270
2025-08-25 23:25:26 v 1 359.62633 +49.20368 270
2025-08-26 22:27:21 C 01 34 59.30 +48 56 07.1 V M32
2025-08-26 22:28:51 C 01 34 59.08 +48 55 53.6 V M32
2025-08-26 22:30:21 C 01 34 58.91 +48 55 40.2 V M32
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)