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173738 (2001 QJ278)
Classification: Main-belt Asteroid          SPK-ID: 2173738
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2898465110572977 4.8772e-08  
a 2.667039844598202 1.9993e-08 au
q 1.894007650790616 1.3206e-07 au
i 16.18239606212238 4.9219e-06 deg
node 116.9909085597201 1.7821e-05 deg
peri 158.0919071084613 1.8847e-05 deg
M 154.926906046557 7.8e-06 deg
tp 2458315.852494839487
(2018-Jul-16.35249484)
3.253e-05 TDB
period 1590.899270806565
4.36
1.7889e-05
4.898e-08
d
yr
n .2262871110736538 2.5445e-09 deg/d
Q 3.440072038405789 2.5788e-08 au
  Orbit Determination Parameters
   # obs. used (total)      576  
   data-arc span      9128 days (24.99 yr)  
   first obs. used      1995-01-30  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48226  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 17:08:27  

Additional Information
 Earth MOID = .886242 au 
 Jupiter MOID = 1.77548 au 
 T_jup = 3.267 
[ 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 MPO449899  
diameter diameter 3.529 km 0.704 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.129   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

173738 (2001 QJ278)          Discovered 2001-Aug-19 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 2001 QJ278 = 2000 EH168 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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