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13532 (1991 RY8)
Classification: Main-belt Asteroid          SPK-ID: 2013532
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1381337991827652 3.189e-08  
a 2.292036327127498 6.0002e-09 au
q 1.975428641396465 7.2673e-08 au
i 3.748405007609759 3.5522e-06 deg
node 8.332137612729875 5.1383e-05 deg
peri 10.67236193140571 5.2836e-05 deg
M 141.9447246926302 1.2461e-05 deg
tp 2458700.756185022998
(2019-Aug-05.25618502)
4.3567e-05 TDB
period 1267.449521504208
3.47
4.977e-06
1.363e-08
d
yr
n .2840349804012332 1.1153e-09 deg/d
Q 2.60864401285853 6.8291e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1933  
   data-arc span      10778 days (29.51 yr)  
   first obs. used      1991-09-11  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46903  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:00:03  

Additional Information
 Earth MOID = .976132 au 
 Jupiter MOID = 2.85513 au 
 T_jup = 3.582 
[ 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 14.5   n/a MPO431657  
diameter diameter 2.985 km 0.489 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.378   0.126 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13532 (1991 RY8)          Discovered 1991-Sep-11 by Holt, H. E. at Palomar
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RY8 = 1991 SK1 = 1997 HH11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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