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39572 (1993 DQ1)
Classification: Amor [NEO, PHA]          SPK-ID: 2039572
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 153 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4924206244163447 4.0296e-08  
a 2.036622529866865 1.3909e-08 au
q 1.033747592009427 7.8847e-08 au
i 10.02441447672793 4.9544e-06 deg
node 313.5520684831718 2.4974e-05 deg
peri 344.8054175056172 2.5337e-05 deg
M 23.37427112343753 1.6462e-05 deg
tp 2458931.571342655601
(2020-Mar-23.07134266)
4.7856e-05 TDB
period 1061.608146536052
2.91
1.0876e-05
2.978e-08
d
yr
n .3391081739290086 3.474e-09 deg/d
Q 3.039497467724302 2.0759e-08 au
  Orbit Determination Parameters
   # obs. used (total)      744  
   data-arc span      9496 days (26.00 yr)  
   first obs. used      1993-02-26  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5645  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Feb-27 07:17:02  

Additional Information
 Earth MOID = .0286796 au 
 Jupiter MOID = 2.22197 au 
 T_jup = 3.627 
[ 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 16.5   n/a MPO319562  
diameter diameter 1.554 km 0.655 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.184   0.163 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

39572 (1993 DQ1)          Discovered 1993-Feb-26 by Spacewatch at Kitt Peak
Reference: 20020526/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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