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26812 (1985 RQ2)
Classification: Main-belt Asteroid          SPK-ID: 2026812
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1865309656226512 4.1243e-08  
a 2.180931758817419 8.6636e-09 au
q 1.774120451888098 9.0602e-08 au
i 4.248707428472412 3.1868e-06 deg
node 55.01161352227084 6.7934e-05 deg
peri 310.0891697357504 6.8714e-05 deg
M 133.0310290276215 1.1867e-05 deg
tp 2458165.777627046046
(2018-Feb-16.27762705)
3.7558e-05 TDB
period 1176.417677945863
3.22
7.0099e-06
1.919e-08
d
yr
n .3060137625852359 1.8234e-09 deg/d
Q 2.587743065746739 1.028e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1159  
   data-arc span      13348 days (36.54 yr)  
   first obs. used      1982-09-15  
   last obs. used      2019-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52716  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:00:08  

Additional Information
 Earth MOID = .775373 au 
 Jupiter MOID = 2.87042 au 
 T_jup = 3.654 
[ 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 15.1   n/a MPO416976  
diameter diameter 2.593 km 0.793 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.457   0.225 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26812 (1985 RQ2)          Discovered 1985-Sep-04 by Debehogne, H. at La Silla
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1985 RQ2 = 1982 RS = 1998 RL40 = 2000 DG112 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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