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31543 (1999 DM5)
Classification: Main-belt Asteroid          SPK-ID: 2031543
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1237381501404492 1.0014e-07  
a 2.648920420717733 3.1997e-08 AU
q 2.32114790798886 2.7639e-07 AU
i 14.37584427256076 9.1196e-06 deg
node 213.0173447291248 2.8511e-05 deg
peri 326.9778558785671 3.8942e-05 deg
M 213.7787892815727 2.6837e-05 deg
tp 2457640.101787334913
(2016-Sep-08.60178733)
0.00011967 JED
period 1574.714381786684
4.31
2.8532e-05
7.812e-08
d
yr
n .2286128863518354 4.1422e-09 deg/d
Q 2.976692933446606 3.5956e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      537  
   data-arc span      6184 days (16.93 yr)  
   first obs. used      1997-10-29  
   last obs. used      2014-10-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53143  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 15:05:22  

Additional Information
 Earth MOID = 1.33499 AU 
 T_jup = 3.336 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5 mag n/a MPO309398  

31543 (1999 DM5)          Discovered 1999-Feb-17 by LINEAR at Socorro (704)
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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