18172 (2000 QL7)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5110299298 ± 6.25e-09
Semi-major axis (a)2.4257654377 AU ± 9.50e-10
Inclination (i)17.82779980° ± 1.30e-06
Long. of Asc. Node (Ω)338.42358622° ± 3.04e-06
Arg. of Perihelion (ω)100.76252583° ± 4.20e-06
Mean Anomaly (M)206.68326087° ± 8.97e-07
Mean Motion (n)0.2608789695°/day ± 1.53e-10
Perihelion dist (q)1.18612670 AU ± 1.52e-08
Aphelion dist (Q)3.66540418 AU ± 1.52e-08
Orbital Period3.77809789 yr ± 2.22e-09
Physical Parameters
H (abs. magnitude)15.69
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.341″
Uncertainty0
Orbit TypeAmor
MOID0.365243 AU
Observations Used4239
Gaia Obs Used36
Oppositions29
Arc Total1977-2024
First Observation Used1977-07-21
Last Observation Used2024-05-09
Observations (6767)
Date Type RA Dec Mag Band Observatory
2019-11-10 15:14:25 S 00 16 43.519 +75 06 37.19 V C57
2019-11-10 15:14:25 s 1 -124517.35 3 +340594.73 8590.0 C57
2019-11-10 15:44:25 S 00 16 38.460 +75 07 11.21 V C57
2019-11-10 15:44:25 s 1 -125318.31 4 +339688.19 470.0 C57
2019-11-10 16:14:25 S 00 16 33.523 +75 07 43.03 V C57
2019-11-10 16:14:25 s 1 -126115.86 8 +338772.41 5380.0 C57
2019-11-10 16:44:25 S 00 16 28.550 +75 08 16.19 V C57
2019-11-10 16:44:25 s 1 -126909.97 9 +337847.37 3200.0 C57
2019-11-10 17:14:25 S 00 16 23.642 +75 08 50.32 V C57
2019-11-10 17:14:25 s 1 -127700.60 8 +336913.04 3830.0 C57
2019-11-10 17:44:25 S 00 16 18.766 +75 09 22.32 V C57
2019-11-10 17:44:25 s 1 -128487.71 8 +335969.42 7190.0 C57
2019-11-10 18:14:25 S 00 16 13.800 +75 09 55.73 V C57
2019-11-10 18:14:25 s 1 -129271.26 8 +335016.47 3150.0 C57
2019-11-10 20:14:25 S 00 15 53.921 +75 12 07.20 V C57
2019-11-10 20:14:25 s 1 -132369.09 2 +331111.09 1040.0 C57
2019-11-10 21:44:25 S 00 15 39.432 +75 13 47.57 V C57
2019-11-10 21:44:25 s 1 -134653.12 7 +328083.21 9210.0 C57
2019-11-10 22:14:25 S 00 15 34.774 +75 14 19.10 V C57
2019-11-10 22:14:25 s 1 -135406.75 8 +327054.97 2250.0 C57
2019-11-10 22:44:25 S 00 15 29.880 +75 14 50.86 V C57
2019-11-10 22:44:25 s 1 -136156.46 1 +326017.24 6930.0 C57
2019-11-10 23:14:25 S 00 15 24.804 +75 15 24.80 V C57
2019-11-10 23:14:25 s 1 -136902.19 3 +324969.97 3140.0 C57
2019-11-10 23:44:25 S 00 15 20.088 +75 15 57.89 V C57
2019-11-10 23:44:25 s 1 -137643.91 0 +323913.15 750.0 C57
2019-11-11 00:14:25 S 00 15 15.185 +75 16 29.78 V C57
2019-11-11 00:14:25 s 1 -138381.56 7 +322846.77 9650.0 C57
2019-11-11 00:44:25 S 00 15 10.375 +75 17 03.41 V C57
2019-11-11 00:44:25 s 1 -139115.12 0 +321770.78 9730.0 C57
2019-11-11 01:14:25 S 00 15 05.599 +75 17 36.71 V C57
2019-11-11 01:14:25 s 1 -139844.52 2 +320685.18 860.0 C57
2019-11-11 01:44:25 S 00 15 00.797 +75 18 08.14 V C57
2019-11-11 01:44:25 s 1 -140569.72 8 +319589.94 2920.0 C57
2019-11-11 02:14:25 S 00 14 55.798 +75 18 41.04 V C57
2019-11-11 02:14:25 s 1 -141290.69 2 +318485.03 5780.0 C57
2019-11-11 02:44:25 S 00 14 51.192 +75 19 14.63 V C57
2019-11-11 02:44:25 s 1 -142007.36 6 +317370.42 9330.0 C57
2019-11-11 03:14:25 S 00 14 46.423 +75 19 46.78 V C57
2019-11-11 03:14:25 s 1 -142719.70 2 +316246.10 3440.0 C57
2019-11-11 03:44:25 S 00 14 41.438 +75 20 19.32 V C57
2019-11-11 03:44:25 s 1 -143427.65 1 +315112.05 7980.0 C57
2019-11-11 04:14:25 S 00 14 36.780 +75 20 52.30 V C57
2019-11-11 04:14:25 s 1 -144131.16 6 +313968.22 2820.0 C57
2019-11-11 04:44:25 S 00 14 32.018 +75 21 25.70 V C57
2019-11-11 04:44:25 s 1 -144830.19 6 +312814.61 7830.0 C57
2019-11-11 05:11:36 C 00 19 13.68 +75 28 20.1 U I41
2019-11-11 05:12:54 C 00 19 13.40 +75 28 21.5 U I41
2019-11-11 05:14:25 S 00 14 27.187 +75 21 57.49 V C57
2019-11-11 05:14:25 s 1 -145524.69 1 +311651.17 2870.0 C57