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15283 (1991 RB8)
Classification: Main-belt Asteroid          SPK-ID: 2015283
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1222691520543107 3.1593e-08  
a 2.238379137565929 7.3065e-09 au
q 1.964694418439683 7.2027e-08 au
i 5.302576748892487 3.3633e-06 deg
node 37.40859474303645 4.0652e-05 deg
peri 58.74965903641392 4.4638e-05 deg
M 129.3284421249236 1.6145e-05 deg
tp 2458561.069247857314
(2019-Mar-18.56924786)
5.5204e-05 TDB
period 1223.204023586397
3.35
5.9891e-06
1.64e-08
d
yr
n .2943090384419199 1.441e-09 deg/d
Q 2.512063856692174 8.1998e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1925  
   data-arc span      24874 days (68.10 yr)  
   first obs. used      1951-12-01  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48499  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 23:46:12  

Additional Information
 Earth MOID = .987438 au 
 Jupiter MOID = 2.63757 au 
 T_jup = 3.621 
[ 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 MPO467857  
diameter diameter 3.488 km 0.308 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.438   0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15283 (1991 RB8)          Discovered 1991-Sep-12 by Holt, H. E. at Palomar
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RB8 = 1969 AJ = 1998 XM66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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