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78396 (2002 QW1)
Classification: Outer Main-belt Asteroid          SPK-ID: 2078396
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1214139232164761 5.9315e-08  
a 3.214764251775884 2.1441e-08 au
q 2.824447111751695 1.8658e-07 au
i 6.324847192333502 7.2376e-06 deg
node 201.4280570670144 3.6502e-05 deg
peri 156.9281293530686 4.2215e-05 deg
M 6.814337557742824 1.9559e-05 deg
tp 2458960.648629203177
(2020-Apr-21.14862920)
0.00011434 TDB
period 2105.339420785653
5.76
2.1062e-05
5.766e-08
d
yr
n .1709938057710705 1.7107e-09 deg/d
Q 3.605081391800074 2.4044e-08 au
  Orbit Determination Parameters
   # obs. used (total)      480  
   data-arc span      10609 days (29.05 yr)  
   first obs. used      1991-10-10  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52612  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:02  

Additional Information
 Earth MOID = 1.82241 au 
 Jupiter MOID = 1.87161 au 
 T_jup = 3.169 
[ 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 15.1   n/a MPO449493  
diameter diameter 5.724 km 0.539 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78396 (2002 QW1)          Discovered 2002-Aug-16 by NEAT at Haleakala
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 QW1 = 1991 TO10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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