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JPL Small-Body Database Browser
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2585 Irpedina (1979 OJ15)
Classification: Main-belt Asteroid          SPK-ID: 2002585
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2368942395424299 4.3291e-08  
a 2.424642117041226 7.4157e-09 au
q 1.850258366562197 1.0554e-07 au
i 5.984396102583394 4.3177e-06 deg
node 136.5690857064714 3.9199e-05 deg
peri 247.1283067331032 3.9906e-05 deg
M 138.4630658068295 7.9635e-06 deg
tp 2458070.102660875933
(2017-Nov-12.60266088)
2.9871e-05 TDB
period 1379.01787001488
3.78
6.3265e-06
1.732e-08
d
yr
n .2610553552842034 1.1976e-09 deg/d
Q 2.999025867520254 9.1724e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2490  
   data-arc span      32378 days (88.65 yr)  
   first obs. used      1930-09-16  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43147  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 21:54:09  

Additional Information
 Earth MOID = .862478 au 
 Jupiter MOID = 2.47337 au 
 T_jup = 3.465 
[ 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 12.1   n/a MPO435721  
diameter diameter 6.049 km 0.412 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.698   0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2585 Irpedina (1979 OJ15)          Discovered 1979-Jul-21 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1979 OJ15 = 1930 SX = 1932 EL = 1951 EM2 = 1964 RJ = 1968 UM3 = 1970 EP2 = 1970 FC = 1972 XN1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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