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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1218387187694845 1.7954e-08  
a 2.239268152119067 6.1261e-09 au
q 1.966438589483569 3.9628e-08 au
i 5.301060817742416 3.09e-07 deg
node 37.39033314553782 1.0003e-05 deg
peri 58.84210332635899 1.2401e-05 deg
M 188.0953020417656 6.3278e-06 deg
tp 2459784.943895551350
(2022-Jul-24.44389555)
2.2343e-05 TDB
period 1223.932823811507
3.35
5.0226e-06
1.375e-08
d
yr
n .2941337898585862 1.207e-09 deg/d
Q 2.512097714754566 6.8725e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2279  
   data-arc span      25102 days (68.73 yr)  
   first obs. used      1951-12-01  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46587  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:53:59  

Additional Information
 Earth MOID = .988947 au 
 Jupiter MOID = 2.63654 au 
 T_jup = 3.620 
[ 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 14.16   n/a E2021B10  
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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