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332471 (2008 DM81)
Classification: Main-belt Asteroid          SPK-ID: 2332471
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2038337734785365 5.4363e-08  
a 2.323101974954719 1.9726e-08 au
q 1.849575333224258 1.2674e-07 au
i .1882952104975656 7.4667e-06 deg
node 284.4781682040177 0.0040361 deg
peri 342.1183137251095 0.0040363 deg
M 100.5336485790823 4.3096e-05 deg
tp 2458639.331569878752
(2019-Jun-04.83156988)
0.00015179 TDB
period 1293.304646566885
3.54
1.6472e-05
4.51e-08
d
yr
n .2783566895515535 3.5453e-09 deg/d
Q 2.79662861668518 2.3746e-08 au
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      8207 days (22.47 yr)  
   first obs. used      1994-05-02  
   last obs. used      2016-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .74384  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-10 10:11:37  

Additional Information
 Earth MOID = .833647 au 
 Jupiter MOID = 2.29284 au 
 T_jup = 3.548 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456497.5 (2013-Jul-24.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2046160399074503 5.448e-08  
q 1.847565547038662 1.2719e-07 au
tp 2456050.644304837307
(2012-May-03.14430484)
0.00013117 TDB
node 284.8306431226123 0.004016 deg
peri 341.5082521744863 0.0040162 deg
i .1889151116714786 7.4904e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      8207 days (22.47 yr)  
   first obs. used      1994-05-02  
   last obs. used      2016-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .74384  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-10 10:11:37  

Additional Information
 Jupiter MOID = 2.29284 au 
 T_jup = 3.548 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.968095296486159E-15 -6.875146141796593E-15 2.564516037528613E-13 5.060707554917162E-14 1.519707992077755E-13 6.444361456055255E-17
q -6.875146141796593E-15 1.617806308363621E-14 4.736015449121069E-13 -1.244551336691481E-13 -1.020062829607178E-14 -7.595011389976634E-17
tp 2.564516037528613E-13 4.736015449121069E-13 1.720447082078501E-8 -1.301550328089304E-10 5.381346354019411E-9 9.199735673537541E-13
node 5.060707554917162E-14 -1.244551336691481E-13 -1.301550328089304E-10 1.612854331597977E-5 -1.612849140285976E-5 1.663909919116237E-8
peri 1.519707992077755E-13 -1.020062829607178E-14 5.381346354019411E-9 -1.612849140285976E-5 1.613007936392778E-5 -1.663872041442096E-8
i 6.444361456055255E-17 -7.595011389976634E-17 9.199735673537541E-13 1.663909919116237E-8 -1.663872041442096E-8 5.610616791031975E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.1   n/a MPO241799  

332471 (2008 DM81)          Discovered 2008-Feb-27 by Spacewatch at Kitt Peak
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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