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8480 (1987 RD1)
Classification: Main-belt Asteroid          SPK-ID: 2008480
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1795210980104521 4.9976e-08  
a 2.670140772173958 1.6704e-08 AU
q 2.190794168910813 1.35e-07 AU
i 1.894628417700612 6.4416e-06 deg
node 10.50532876655456 0.00016989 deg
peri 76.90031051881547 0.00017085 deg
M 4.197821931825017 1.958e-05 deg
tp 2456981.916771122206
(2014-Nov-20.41677112)
8.662e-05 JED
period 1593.674649533664
4.36
1.4955e-05
4.094e-08
d
yr
n .2258930328755258 2.1197e-09 deg/d
Q 3.149487375437103 1.9703e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1161  
   data-arc span      12937 days (35.42 yr)  
   first obs. used      1979-12-24  
   last obs. used      2015-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49311  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:01:51  

Additional Information
 Earth MOID = 1.20778 AU 
 T_jup = 3.357 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO263425  

8480 (1987 RD1)          Discovered 1987-Sep-13 by Debehogne, H. at La Silla
Reference: 19980313/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1987 RD1 = 1979 YL3 = 1989 BS 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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