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JPL Small-Body Database Browser
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39331 (2001 YO87)
Classification: Main-belt Asteroid          SPK-ID: 2039331
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2374606336752564 5.3658e-08  
a 2.753277263753379 1.3528e-08 au
q 2.099482300018825 1.4412e-07 au
i 10.17038110492473 5.5298e-06 deg
node 149.3904832377455 2.8932e-05 deg
peri 5.512107503879207 3.1122e-05 deg
M 266.2613979445692 1.2415e-05 deg
tp 2459034.999540244379
(2020-Jul-04.49954024)
5.9532e-05 TDB
period 1668.681109576181
4.57
1.2298e-05
3.367e-08
d
yr
n .2157392433665378 1.59e-09 deg/d
Q 3.407072227487932 1.674e-08 au
  Orbit Determination Parameters
   # obs. used (total)      877  
   data-arc span      8863 days (24.27 yr)  
   first obs. used      1995-08-30  
   last obs. used      2019-12-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53818  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:09:03  

Additional Information
 Earth MOID = 1.11046 au 
 Jupiter MOID = 1.59088 au 
 T_jup = 3.281 
[ show covariance matrix ]

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 14.8   n/a MPO459136  
diameter diameter 5.167 km 1.432 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.080   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

39331 (2001 YO87)          Discovered 2001-Dec-18 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 YO87 = 1998 KJ50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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