C/2016 Q2 PANSTARRS
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Comet C/2016 Q2 was discovered on 26 August 2016 with the Pan-STARRS 1 telescope (Haleakala), that is more than 5 years before its perihelion passage. This comet was observed until the end of mid-2024 and is still observable.
Comet had its closest approach to the Earth on 24 May 2021 (6.805 au), about 2 weeks after its perihelion passage.
Preferred NG solution given here is based on data spanning over 7.63 yr in a range of heliocentric distances: 12.58 au – 7.08 au (perihelion) – 9.74 au.
This comet suffers tiny planetary perturbations during its passage through the planetary system; this is a long-period comet with original and future semimajor axes of about 7,500 au and 6,700 au, respectively.
#********************************** update of 'Oort spike' comets 2016 - 2020, comet no 2; long-period comet
Comet had its closest approach to the Earth on 24 May 2021 (6.805 au), about 2 weeks after its perihelion passage.
Preferred NG solution given here is based on data spanning over 7.63 yr in a range of heliocentric distances: 12.58 au – 7.08 au (perihelion) – 9.74 au.
This comet suffers tiny planetary perturbations during its passage through the planetary system; this is a long-period comet with original and future semimajor axes of about 7,500 au and 6,700 au, respectively.
#********************************** update of 'Oort spike' comets 2016 - 2020, comet no 2; long-period comet
| solution description | ||
|---|---|---|
| number of observations | 617 | |
| data interval | 2016 08 26 – 2024 04 12 | |
| data type | perihelion within the observation arc (FULL) | |
| data arc selection | entire data set (STD) | |
| range of heliocentric distances | 12.58 au – 7.08 au (perihelion) – 9.74 au | |
| type of model of motion | NC - non-gravitational orbits for symmetric CO-g(r)-like function | |
| data weighting | YES | |
| number of residuals | 1228 | |
| RMS [arcseconds] | 0.52 | |
| orbit quality class | 1a+ | |
| orbital elements (heliocentric ecliptic J2000) | ||
|---|---|---|
| Epoch | 2021 09 23 | |
| perihelion date | 2021 05 11.99395863 | ± 0.00191462 |
| perihelion distance [au] | 7.08187359 | ± 0.00000654 |
| eccentricity | 1.00118768 | ± 0.00000514 |
| argument of perihelion [°] | 84.535902 | ± 0.000146 |
| ascending node [°] | 322.295289 | ± 0.000014 |
| inclination [°] | 109.388343 | ± 0.000007 |
| reciprocal semi-major axis [10-6 au-1] | -167.71 | ± 0.73 |
Time distribution of positional observations with corresponding heliocentric (red curve) and geocentric (green curve) distance at which they were taken. The horizontal dotted line shows the perihelion distance for a given comet whereas vertical dotted line — the moment of perihelion passage.
| non-gravitational parameters | ||
|---|---|---|
| A1 [10-8au/day2] | 0.71258 | ± 0.248 |
| A2 [10-8au/day2] | 1.3294 | ± 0.3359 |
| A3 [10-8au/day2] | 0.1327 | ± 0.0494 |
| m | -2.00 | |
| n | 3.000 | |
| k | -2.6000 | |
| r0 [au] | 10.000 | |
| α | 0.0100 | |