505447 (2013 SQ99)

System parameters

Heliocentric orbitPhotometry Position 2025/08/22 20:59 UTC
DES class = CLASSICAL HV = 6.8±0.5 +01:32:29.31 +07:50:56.2
<a> = 44.20 (AU) V = 23.6 (V2 = 24.6) Uncertainty = 0.1 (arcsec)
<e> = 0.086 Δmag = 0.40 Rates: -1.299, -0.556 ("/hr)
<i> = 2.31 (degrees) B-V = NULL  
Perihelion = 2196 V-R = NULL Opposition: October
Aphelion = 2048    

Astrometric observations

Observation time (UTC)Observatory/InstrumentRADEC Δ (AU)Δx (arcsec) Δx errorΔy (arcsec) Δy error
2014/08/22  11.67718 Gemini N/GMOS +00:49:50.37 +02:52:17.6 46.60138 -0.37489 0.00442 +0.02833 0.00577
2019/11/05  04.74941 HST/WFC3 +01:04:42.55 +04:42:19.1 46.69551 +0.10792 0.00100 +0.08403 0.00100
plus proprietary data                

Orbital knowledge

Comments: Fraser et al. 2017 discovery, with follow-up by Parker et al. SSOLS program.


Last updated: 2025/08/22 20:59 UTC