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85172 (1990 QU6)
Classification: Main-belt Asteroid          SPK-ID: 2085172
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2217984045426764 4.7439e-08  
a 2.362109817237835 6.3552e-09 au
q 1.83819762841989 1.1381e-07 au
i 3.096510296616263 4.4761e-06 deg
node 130.4597981488887 8.4583e-05 deg
peri 228.0903609504036 8.519e-05 deg
M 59.69966264931628 8.8256e-06 deg
tp 2458780.603695898858
(2019-Oct-24.10369590)
3.2289e-05 TDB
period 1326.015356927946
3.63
5.3514e-06
1.465e-08
d
yr
n .2714900684363357 1.0957e-09 deg/d
Q 2.886022006055779 7.7648e-09 au
  Orbit Determination Parameters
   # obs. used (total)      594  
   data-arc span      15068 days (41.25 yr)  
   first obs. used      1979-08-14  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5472  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:14:07  

Additional Information
 Earth MOID = .836096 au 
 Jupiter MOID = 2.56376 au 
 T_jup = 3.515 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO493473  

85172 (1990 QU6)          Discovered 1990-Aug-20 by Elst, E. W. at La Silla
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2137-Oct-22 16:51 < 00:01 Juno 0.0289452469720709 0.0289409905302431 0.0289495062126122 5.13736660268013 5.13736652086603 2501878.202349473 0.774357257072881 504.392058553732 41.9885849140316 -65.5576501634866 93893.4225794651 T 18 CATAB v2.0f-lin.ifort 2020-Dec-17 22:14:08 2020-Dec-17 22:14

Alternate Designations
 1990 QU6 = 2001 SS 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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