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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2167108262873981 4.7121e-08  
a 3.050618438985778 1.683e-08 au
q 2.389516396385597 1.4542e-07 au
i 11.50676029261637 4.6168e-06 deg
node 213.255756401687 2.3766e-05 deg
peri 123.489893056212 2.6438e-05 deg
M 81.46006130668439 9.2783e-06 deg
tp 2458760.125163306037
(2019-Oct-03.62516331)
5.0083e-05 TDB
period 1946.167712947913
5.33
1.6105e-05
4.409e-08
d
yr
n .1849789191367779 1.5307e-09 deg/d
Q 3.711720481585958 2.0477e-08 au
  Orbit Determination Parameters
   # obs. used (total)      704  
   data-arc span      8687 days (23.78 yr)  
   first obs. used      1997-05-05  
   last obs. used      2021-02-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52276  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:18:54  

Additional Information
 Earth MOID = 1.40245 au 
 Jupiter MOID = 1.89021 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 14.91   n/a MPCxxxxx  
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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