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78836 (2003 QT39)
Classification: Main-belt Asteroid          SPK-ID: 2078836
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2238061548642721 4.1029e-08  
a 2.427950714183706 1.0071e-08 au
q 1.884560400642288 9.8614e-08 au
i 1.02128955825176 4.5439e-06 deg
node 243.3759246429766 0.00023315 deg
peri 34.41591841191784 0.00023331 deg
M 196.2096926091371 8.4332e-06 deg
tp 2459629.200671146841
(2022-Feb-18.70067115)
3.3749e-05 TDB
period 1381.841485117627
3.78
8.598e-06
2.354e-08
d
yr
n .2605219222878922 1.621e-09 deg/d
Q 2.971341027725124 1.2325e-08 au
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      15975 days (43.74 yr)  
   first obs. used      1976-05-03  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55779  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:31:35  

Additional Information
 Earth MOID = .868234 au 
 Jupiter MOID = 2.16488 au 
 T_jup = 3.474 
[ 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 16.2   n/a MPO449495  
diameter diameter 1.369 km 0.338 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.312   0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78836 (2003 QT39)          Discovered 2003-Aug-22 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2003 QT39 = 1976 JW4 = 1999 NG23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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