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78398 (2002 QS3)
Classification: Main-belt Asteroid          SPK-ID: 2078398
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01257983386757459 4.086e-08  
a 2.924873076897671 2.2487e-08 au
q 2.888078659506557 1.1251e-07 au
i 5.870164677837908 4.0948e-06 deg
node 211.7034426443046 4.1696e-05 deg
peri 212.6437902674077 0.00018523 deg
M 108.5724242199715 0.00017937 deg
tp 2458449.469042897565
(2018-Nov-26.96904290)
0.00091098 TDB
period 1827.085892039858
5.00
2.107e-05
5.769e-08
d
yr
n .197035071842231 2.2722e-09 deg/d
Q 2.961667494288786 2.277e-08 au
  Orbit Determination Parameters
   # obs. used (total)      721  
   data-arc span      7836 days (21.45 yr)  
   first obs. used      1998-12-08  
   last obs. used      2020-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5441  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:01  

Additional Information
 Earth MOID = 1.89971 au 
 Jupiter MOID = 2.06372 au 
 T_jup = 3.271 
[ 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 14.9   n/a MPO426481  
diameter diameter 5.782 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78398 (2002 QS3)          Discovered 2002-Aug-16 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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