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66042 (1998 QA78)
Classification: Main-belt Asteroid          SPK-ID: 2066042
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2166414365164633 5.4452e-08  
a 3.049782782753315 1.7592e-08 au
q 2.38907345963446 1.6956e-07 au
i 11.50822140284543 4.915e-06 deg
node 213.2599096064884 2.4972e-05 deg
peri 123.4227127664006 2.8159e-05 deg
M 44.52176305130396 9.7907e-06 deg
tp 2458759.913284849243
(2019-Oct-03.41328485)
5.3099e-05 TDB
period 1945.368096821943
5.33
1.6832e-05
4.608e-08
d
yr
n .1850549521132351 1.6012e-09 deg/d
Q 3.71049210587217 2.1404e-08 au
  Orbit Determination Parameters
   # obs. used (total)      645  
   data-arc span      8239 days (22.56 yr)  
   first obs. used      1997-05-05  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53349  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:50:09  

Additional Information
 Earth MOID = 1.4038 au 
 Jupiter MOID = 1.89074 au 
 T_jup = 3.171 
[ 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 14.8   n/a MPO439515  
diameter diameter 5.698 km 0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66042 (1998 QA78)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QA78 = 1997 JY6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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