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JPL Small-Body Database Browser
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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1380046445290512 3.2274e-08  
a 2.292201901834775 6.2086e-09 au
q 1.975867393183252 7.3678e-08 au
i 3.748098043426066 3.6851e-06 deg
node 8.336767119128385 5.3816e-05 deg
peri 10.68192021051491 5.5396e-05 deg
M 85.13802508591539 1.3066e-05 deg
tp 2458700.722660682946
(2019-Aug-05.22266068)
4.5859e-05 TDB
period 1267.586863158198
3.47
5.1501e-06
1.41e-08
d
yr
n .2840042055209208 1.1539e-09 deg/d
Q 2.608536410486299 7.0655e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1640  
   data-arc span      10342 days (28.31 yr)  
   first obs. used      1991-09-11  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48348  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 23:09:14  

Additional Information
 Earth MOID = .977961 au 
 Jupiter MOID = 2.85405 au 
 T_jup = 3.582 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456557.5 (2013-Sep-22.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1387497432598418 3.2409e-08  
q 1.973715883350008 7.4054e-08 au
tp 2456164.762354947412
(2012-Aug-25.26235495)
4.5277e-05 TDB
node 8.405243458199932 5.3717e-05 deg
peri 10.31080122494748 5.5276e-05 deg
i 3.753042376573953 3.6879e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1640  
   data-arc span      10342 days (28.31 yr)  
   first obs. used      1991-09-11  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48348  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 23:09:14  

Additional Information
 Jupiter MOID = 2.85405 au 
 T_jup = 3.582 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.050352862956437E-15 -2.393860407565598E-15 -4.988458022381656E-14 6.244223818409958E-15 -3.835935623456527E-14 -8.246516614835006E-16
q -2.393860407565598E-15 5.484034748943908E-15 8.735801321884837E-14 -1.427239952733372E-14 8.235600381697704E-14 1.920530866421352E-15
tp -4.988458022381656E-14 8.735801321884837E-14 2.049968912748853E-9 7.395285630257384E-12 6.001922685756266E-10 -1.547424889082566E-13
node 6.244223818409958E-15 -1.427239952733372E-14 7.395285630257384E-12 2.885470736923068E-9 -2.876714545216737E-9 -3.578538371221005E-12
peri -3.835935623456527E-14 8.235600381697704E-14 6.001922685756266E-10 -2.876714545216737E-9 3.055455140823029E-9 3.5552504924998E-12
i -8.246516614835006E-16 1.920530866421352E-15 -1.547424889082566E-13 -3.578538371221005E-12 3.5552504924998E-12 1.360092298565369E-11

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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