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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 162 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4923793807685037 4.0244e-08  
a 2.036833480555922 1.3316e-08 au
q 1.033938672671241 7.8828e-08 au
i 10.02443858785708 4.8413e-06 deg
node 313.55152086 2.4663e-05 deg
peri 344.8197687966551 2.5013e-05 deg
M 91.18138209666772 1.6635e-05 deg
tp 2458931.572394750209
(2020-Mar-23.07239475)
4.6494e-05 TDB
period 1061.773090775107
2.91
1.0412e-05
2.851e-08
d
yr
n .3390554941802073 3.3249e-09 deg/d
Q 3.039728288440603 1.9872e-08 au
  Orbit Determination Parameters
   # obs. used (total)      774  
   data-arc span      10211 days (27.96 yr)  
   first obs. used      1993-02-26  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55707  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 08:43:37  

Additional Information
 Earth MOID = .0270093 au 
 Jupiter MOID = 2.22153 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 16.46   n/a MPCxxxxx  
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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