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85663 (1998 QX42)
Classification: Main-belt Asteroid          SPK-ID: 2085663
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1548377385884551 2.9985e-08  
a 2.218542951788333 6.9124e-09 au
q 1.875028778172071 6.5003e-08 au
i 4.808573791247854 3.7302e-06 deg
node 163.5967788143204 3.8821e-05 deg
peri 100.5800337090343 4.0908e-05 deg
M 29.05673535074701 1.2939e-05 deg
tp 2459299.080811900996
(2021-Mar-25.58081190)
4.3264e-05 TDB
period 1206.980319443894
3.30
5.641e-06
1.544e-08
d
yr
n .2982650124451631 1.394e-09 deg/d
Q 2.562057125404595 7.9827e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1082  
   data-arc span      9424 days (25.80 yr)  
   first obs. used      1995-10-21  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55174  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 01:54:14  

Additional Information
 Earth MOID = .866681 au 
 Jupiter MOID = 2.51392 au 
 T_jup = 3.631 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.02   n/a MPO637175  

85663 (1998 QX42)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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