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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04397834319202132 4.0122e-08  
a 3.206141522598489 2.5417e-08 au
q 3.065140730395463 1.2907e-07 au
i 15.29257857733682 4.0524e-06 deg
node 171.1517882784914 1.7143e-05 deg
peri 246.206108295938 5.0096e-05 deg
M 90.00480127024208 4.6379e-05 deg
tp 2458076.253383211150
(2017-Nov-18.75338321)
0.00027095 TDB
period 2096.874604248305
5.74
2.4935e-05
6.827e-08
d
yr
n .1716840860538983 2.0416e-09 deg/d
Q 3.347142314801515 2.6535e-08 au
  Orbit Determination Parameters
   # obs. used (total)      919  
   data-arc span      10213 days (27.96 yr)  
   first obs. used      1991-04-15  
   last obs. used      2019-04-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54429  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:40:58  

Additional Information
 Earth MOID = 2.10441 au 
 Jupiter MOID = 1.82993 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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