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
2025-05-17 08:16:01 C 14 05 55.520 -22 13 55.50 V 691
2025-05-19 04:09:06 C 14 02 38.857 -22 02 39.66 V G96
2025-05-19 04:17:16 C 14 02 38.170 -22 02 37.54 V G96
2025-05-19 04:25:25 C 14 02 37.475 -22 02 35.70 V G96
2025-05-19 04:33:35 C 14 02 36.859 -22 02 33.29 V G96
2025-05-21 12:07:57 C 13 58 25.068 -21 46 43.00 V P07
2025-05-21 13:22:10 C 13 58 19.097 -21 46 22.44 V P07
2025-05-21 15:01:31 C 13 58 10.963 -21 45 53.57 V P07
2025-05-21 15:03:00 C 13 58 10.817 -21 45 52.96 V P07
2025-05-21 15:14:02 C 13 58 09.922 -21 45 49.50 V P07
2025-05-21 15:34:18 C 13 58 08.251 -21 45 44.32 V P07
2025-05-21 15:35:21 C 13 58 08.191 -21 45 42.84 V P07
2025-05-29 06:41:17 C 13 44 31.803 -20 46 02.49 X F51
2025-05-29 06:58:02 C 13 44 30.495 -20 45 56.70 X F51
2025-05-29 07:35:35 C 13 44 27.554 -20 45 43.51 X F51
2025-06-20 04:56:02 C 13 15 40.828 -17 31 14.99 V G96
2025-06-20 05:06:00 C 13 15 40.428 -17 31 11.32 V G96
2025-06-20 05:12:59 C 13 15 40.147 -17 31 08.98 V G96
2025-08-18 20:08:12 C 13 04 09.134 +45 00 52.70 Z G19
2025-08-18 20:13:22 B 13 04 08.34 +45 02 47.5 X L99
2025-08-18 20:16:37 B 13 04 07.44 +45 04 34.2 X L99
2025-08-18 20:20:23 C 13 04 05.722 +45 07 32.92 Z G19
2025-08-18 20:22:55 B 13 04 06.02 +45 08 00.6 X L99
2025-08-18 20:32:26 C 13 04 02.328 +45 14 08.52 Z G19
2025-08-18 21:04:24 C 13 03 53.496 +45 32 04.09 Z C23
2025-08-18 21:06:02 C 13 03 53.112 +45 32 59.42 Z C23
2025-08-18 21:07:41 C 13 03 52.625 +45 33 53.78 Z C23
2025-08-18 21:09:19 C 13 03 52.195 +45 34 46.74 Z C23
2025-08-19 20:43:25 B 12 53 41.29 +60 01 43.0 X G02
2025-08-19 20:49:26 B 12 53 37.60 +60 05 32.4 X G02
2025-08-19 20:55:19 B 12 53 33.98 +60 09 17.1 X G02
2025-08-19 21:10:52 C 12 53 24.90 +60 18 55.0 V M32
2025-08-19 21:13:58 C 12 53 23.06 +60 20 54.1 V M32
2025-08-19 21:17:06 C 12 53 21.21 +60 22 53.2 V M32
2025-08-19 21:23:48 C 12 53 17.20 +60 27 09.3 V M32
2025-08-19 21:46:49 C 12 53 03.05 +60 41 48.2 Z L04
2025-08-19 21:51:01 C 12 53 00.65 +60 44 28.7 Z L04
2025-08-19 21:55:13 C 12 52 58.22 +60 47 09.6 Z L04
2025-08-20 20:35:26 C 12 21 31.618 +75 45 17.28 V L54
2025-08-20 21:17:39 C 12 19 40.514 +76 11 35.09 V L54
2025-08-20 21:45:23 C 12 18 24.977 +76 28 51.56 V L54
2025-08-20 22:03:38 C 12 17 34.097 +76 40 14.16 V L54
2025-08-20 22:13:17 C 12 17 06.725 +76 46 14.34 V L54
2025-08-20 22:58:54 C 12 14 55.35 +77 14 49.6 V M32
2025-08-20 23:00:21 C 12 14 50.92 +77 15 43.8 V M32
2025-08-20 23:02:01 C 12 14 46.18 +77 16 46.1 V M32
2025-08-20 23:03:37 C 12 14 41.18 +77 17 45.7 V M32
2025-08-20 23:06:23 C 12 14 32.77 +77 19 29.4 V M32
2025-08-21 20:27:48 B 06 04 13.241 +86 12 59.26 V A92
2025-08-21 20:49:38 B 05 52 41.899 +86 08 55.46 V A92
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)