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185956 (2001 DN66)
Classification: Main-belt Asteroid          SPK-ID: 2185956
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09042116919849762 4.3913e-08  
a 2.243194836678057 1.6209e-08 au
q 2.040362536805594 1.0206e-07 au
i 4.879298151883626 5.0111e-06 deg
node 323.4892961285406 5.3971e-05 deg
peri 148.7546368277776 6.5159e-05 deg
M 300.6413376901551 4.0923e-05 deg
tp 2459202.839431898943
(2020-Dec-19.33943190)
0.00014107 TDB
period 1227.153588862774
3.36
1.3301e-05
3.642e-08
d
yr
n .2933618116487104 3.1798e-09 deg/d
Q 2.44602713655052 1.7675e-08 au
  Orbit Determination Parameters
   # obs. used (total)      378  
   data-arc span      7352 days (20.13 yr)  
   first obs. used      1999-10-01  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59579  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 13:32:30  

Additional Information
 Earth MOID = 1.05854 au 
 Jupiter MOID = 2.61978 au 
 T_jup = 3.623 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457550.5 (2016-Jun-11.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08965625822390146 4.3781e-08  
q 2.042534954873413 1.0178e-07 au
tp 2457974.133926930474
(2017-Aug-08.63392693)
0.00013316 TDB
node 323.5772965493596 5.3984e-05 deg
peri 148.3043055616959 6.539e-05 deg
i 4.878137971221514 5.0109e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      378  
   data-arc span      7352 days (20.13 yr)  
   first obs. used      1999-10-01  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59579  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 13:32:30  

Additional Information
 Jupiter MOID = 2.61978 au 
 T_jup = 3.623 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.916805669171099E-15 -4.40967814708995E-15 -3.157887014419286E-13 -5.445737923049809E-15 -1.276654786560162E-14 -5.633642928695227E-16
q -4.40967814708995E-15 1.035874258937584E-14 2.033988204858231E-12 8.042373961171812E-15 3.768784109721536E-13 2.224705073236334E-15
tp -3.157887014419286E-13 2.033988204858231E-12 1.773230378700537E-8 -3.906220476356519E-11 4.924108190036779E-9 9.50539793136915E-12
node -5.445737923049809E-15 8.042373961171812E-15 -3.906220476356519E-11 2.914253282987154E-9 -2.913662820980258E-9 4.100666035780562E-11
peri -1.276654786560162E-14 3.768784109721536E-13 4.924108190036779E-9 -2.913662820980258E-9 4.275913512805223E-9 -3.832678011904159E-11
i -5.633642928695227E-16 2.224705073236334E-15 9.50539793136915E-12 4.100666035780562E-11 -3.832678011904159E-11 2.510884311053292E-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 16.6   n/a MPO454280  

185956 (2001 DN66)          Discovered 2001-Feb-19 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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