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22431 (1996 DY2)
Classification: Main-belt Asteroid          SPK-ID: 2022431
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07402055733958933 4.1821e-08  
a 2.886123249631102 1.4269e-08 au
q 2.672490798142661 1.1954e-07 au
i 3.071640063323474 3.5634e-06 deg
node 70.2261108997435 8.718e-05 deg
peri 336.8639510554634 9.2215e-05 deg
M 128.3489817595959 2.9245e-05 deg
tp 2458562.000349698326
(2019-Mar-19.50034970)		 0.00014588 TDB
period 1790.8975276418
4.90		 1.3281e-05
3.636e-08		 d
yr
n .2010165263190894 1.4907e-09 deg/d
Q 3.099755701119542 1.5325e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1849  
   data-arc span      10986 days (30.08 yr)  
   first obs. used      1991-02-15  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4979  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:06:15  

Additional Information
 Earth MOID = 1.68159 au 
 Jupiter MOID = 2.18672 au 
 T_jup = 3.286 
[ 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 13.86   n/a E2021B10  
diameter diameter 5.198 km 0.370 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.260   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22431 (1996 DY2)          Discovered 1996-Feb-28 by Laurie, S. P. at Church Stretton
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1996 DY2 = 1998 QG23 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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