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78424 (2002 QB42)
Classification: Main-belt Asteroid          SPK-ID: 2078424
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03292331034443054 5.6284e-08  
a 2.761252321893751 2.0511e-08 au
q 2.670342754760764 1.6344e-07 au
i 5.143571267128648 6.6312e-06 deg
node 7.562308875911351 5.7098e-05 deg
peri 306.6159506318894 0.00010799 deg
M 6.233065115082892 9.074e-05 deg
tp 2459171.482717952935
(2020-Nov-17.98271795)
0.00042243 TDB
period 1675.936532680429
4.59
1.8673e-05
5.112e-08
d
yr
n .2148052703548562 2.3934e-09 deg/d
Q 2.852161889026739 2.1186e-08 au
  Orbit Determination Parameters
   # obs. used (total)      670  
   data-arc span      8860 days (24.26 yr)  
   first obs. used      1996-03-27  
   last obs. used      2020-06-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59472  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:36:43  

Additional Information
 Earth MOID = 1.65881 au 
 Jupiter MOID = 2.23664 au 
 T_jup = 3.335 
[ 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 15.09   n/a E2020-QM9  
diameter diameter 4.456 km 0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.107   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78424 (2002 QB42)          Discovered 2002-Aug-29 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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