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392085 (2009 DW64)
Classification: Main-belt Asteroid          SPK-ID: 2392085
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1031718366730415 5.0358e-08  
a 2.942241575386902 4.6261e-08 au
q 2.638685108118453 1.5705e-07 au
i 12.09090992905958 7.9635e-06 deg
node 178.7583575517052 2.9253e-05 deg
peri 298.0282727335504 6.1772e-05 deg
M 135.6072282061013 4.7786e-05 deg
tp 2458306.121512972472
(2018-Jul-06.62151297)
0.00025025 TDB
period 1843.38444666081
5.05
4.3475e-05
1.19e-07
d
yr
n .1952929572841521 4.6059e-09 deg/d
Q 3.245798042655352 5.1034e-08 au
  Orbit Determination Parameters
   # obs. used (total)      165  
   data-arc span      3737 days (10.23 yr)  
   first obs. used      2009-01-30  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55079  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:42:08  

Additional Information
 Earth MOID = 1.67904 au 
 Jupiter MOID = 1.87414 au 
 T_jup = 3.231 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457445.5 (2016-Feb-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1045228774017237 5.0347e-08  
q 2.633385169054814 1.5765e-07 au
tp 2458304.402209671927
(2018-Jul-04.90220967)
0.0002459 TDB
node 178.8034810082845 2.9246e-05 deg
peri 297.5511930329237 6.0967e-05 deg
i 12.09476887843431 7.9666e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      165  
   data-arc span      3737 days (10.23 yr)  
   first obs. used      2009-01-30  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55079  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 04:42:08  

Additional Information
 Jupiter MOID = 1.87414 au 
 T_jup = 3.231 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.534783257961712E-15 -7.647503706087547E-15 8.491813286303908E-13 1.363094334924716E-14 1.661005051963815E-13 -3.765787869296381E-15
q -7.647503706087547E-15 2.485322390245644E-14 -6.447366769328526E-12 -4.341271620957269E-14 -1.497503513149519E-12 1.145390819679199E-14
tp 8.491813286303908E-13 -6.447366769328526E-12 6.046478033218627E-8 2.321781669840929E-11 1.31566791647287E-8 5.270167777966337E-11
node 1.363094334924716E-14 -4.341271620957269E-14 2.321781669840929E-11 8.553370645994844E-10 -8.304970898729606E-10 5.452137712376198E-11
peri 1.661005051963815E-13 -1.497503513149519E-12 1.31566791647287E-8 -8.304970898729606E-10 3.716996879032641E-9 -4.22290244249562E-11
i -3.765787869296381E-15 1.145390819679199E-14 5.270167777966337E-11 5.452137712376198E-11 -4.22290244249562E-11 6.346684425629664E-11

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 16.4   n/a MPO294776  

392085 (2009 DW64)          Discovered 2009-Jan-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-04-17

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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