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266492 (2008 DY20)
Classification: Main-belt Asteroid          SPK-ID: 2266492
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1319384494245419 7.0544e-08  
a 2.776916067150985 2.6416e-08 au
q 2.410534067068987 2.0193e-07 au
i 3.453086522421587 7.3811e-06 deg
node 27.62578358414018 9.9187e-05 deg
peri 167.2693844753537 0.00010145 deg
M 216.6143537194701 2.4191e-05 deg
tp 2459673.702521896666
(2022-Apr-04.20252190)
0.00011866 TDB
period 1690.217355568794
4.63
2.4118e-05
6.603e-08
d
yr
n .2129903582009146 3.0392e-09 deg/d
Q 3.143298067232983 2.9901e-08 au
  Orbit Determination Parameters
   # obs. used (total)      212  
   data-arc span      9334 days (25.56 yr)  
   first obs. used      1994-04-02  
   last obs. used      2019-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65104  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 04:04:48  

Additional Information
 Earth MOID = 1.40952 au 
 Jupiter MOID = 1.81184 au 
 T_jup = 3.319 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456991.5 (2014-Nov-30.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1315135440484841 7.071e-08  
q 2.412387336445569 2.0245e-07 au
tp 2456295.274916937847
(2013-Jan-02.77491694)
0.00010108 TDB
node 27.64281432972149 9.9113e-05 deg
peri 167.7526233946789 0.00010139 deg
i 3.454995559707347 7.3837e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      212  
   data-arc span      9334 days (25.56 yr)  
   first obs. used      1994-04-02  
   last obs. used      2019-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65104  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 04:04:48  

Additional Information
 Jupiter MOID = 1.81184 au 
 T_jup = 3.319 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.999835433382526E-15 -1.422615346877706E-14 -2.129331518793077E-12 1.305019458046164E-14 -3.853461587180183E-13 -5.402256211558475E-15
q -1.422615346877706E-14 4.098633291018983E-14 6.310701310993866E-12 -3.659005014924867E-14 1.193388142127982E-12 1.616244496541005E-14
tp -2.129331518793077E-12 6.310701310993866E-12 1.021747515288407E-8 2.844387324373551E-13 2.190455669311502E-9 6.723535118570559E-12
node 1.305019458046164E-14 -3.659005014924867E-14 2.844387324373551E-13 9.823289488282134E-9 -9.804782437821347E-9 -2.58513164834938E-10
peri -3.853461587180183E-13 1.193388142127982E-12 2.190455669311502E-9 -9.804782437821347E-9 1.02804543722037E-8 2.594755471308519E-10
i -5.402256211558475E-15 1.616244496541005E-14 6.723535118570559E-12 -2.58513164834938E-10 2.594755471308519E-10 5.451916467913045E-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 16.7   n/a MPO494440  

266492 (2008 DY20)          Discovered 2008-Feb-28 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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