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90810 (1995 DY2)
Classification: Inner Main-belt Asteroid          SPK-ID: 2090810
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0974631255566261 4.7718e-08  
a 1.909750480921254 1.0633e-08 au
q 1.723620230017398 8.6698e-08 au
i 19.16537622980993 9.5135e-06 deg
node 224.9467529096147 1.263e-05 deg
peri 245.3658117137054 6.5106e-05 deg
M 245.0780752721459 6.8934e-05 deg
tp 2459308.225693574530
(2021-Apr-03.72569357)
0.00018569 TDB
period 963.9696685307978
2.64
8.0509e-06
2.204e-08
d
yr
n .3734557338807994 3.119e-09 deg/d
Q 2.095880731825109 1.167e-08 au
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      10206 days (27.94 yr)  
   first obs. used      1991-09-14  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53624  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:18:36  

Additional Information
 Earth MOID = .796485 au 
 Jupiter MOID = 3.09917 au 
 T_jup = 3.864 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2   n/a MPO493508  

90810 (1995 DY2)          Discovered 1995-Feb-24 by McNaught, R. H. at Siding Spring
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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