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59894 (1999 RQ138)
Classification: Outer Main-belt Asteroid          SPK-ID: 2059894
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04395912072473432 3.9558e-08  
a 3.205324528614027 2.2424e-08 au
q 3.064421280698731 1.2481e-07 au
i 15.29454176327146 3.8163e-06 deg
node 171.1524706946993 1.5691e-05 deg
peri 245.7460451304628 4.3748e-05 deg
M 159.1777432487478 4.1555e-05 deg
tp 2458073.699456624686
(2017-Nov-16.19945662)
0.00024092 TDB
period 2096.073162023157
5.74
2.1995e-05
6.022e-08
d
yr
n .1717497301728358 1.8023e-09 deg/d
Q 3.346227776529323 2.3409e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1061  
   data-arc span      10690 days (29.27 yr)  
   first obs. used      1991-04-15  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52665  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:44:42  

Additional Information
 Earth MOID = 2.10384 au 
 Jupiter MOID = 1.83019 au 
 T_jup = 3.136 
[ 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 14.1   n/a MPO436200  
diameter diameter 7.673 km 0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59894 (1999 RQ138)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RQ138 = 2000 WU165 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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