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13500 Viscardy (1987 PM)
Classification: Main-belt Asteroid          SPK-ID: 2013500
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06466087341887909 3.5421e-08  
a 2.774045039125116 1.2221e-08 au
q 2.594672863991977 9.8043e-08 au
i 7.506262167009163 3.4766e-06 deg
node 277.9159125160293 3.2625e-05 deg
peri 22.5207238729629 4.5536e-05 deg
M 66.99878584101344 3.1368e-05 deg
tp 2458686.425179323762
(2019-Jul-21.92517932)
0.00014738 TDB
period 1687.596782899185
4.62
1.1152e-05
3.053e-08
d
yr
n .2133210987648026 1.4097e-09 deg/d
Q 2.953417214258255 1.3011e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2274  
   data-arc span      12139 days (33.23 yr)  
   first obs. used      1987-08-06  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44155  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:45:57  

Additional Information
 Earth MOID = 1.58058 au 
 Jupiter MOID = 2.1967 au 
 T_jup = 3.320 
[ 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 12.7   n/a MPO449044  

13500 Viscardy           Discovered 1987 Aug. 6 at Caussols.
Georges Viscardy (b. 1917) is the founder of the Société Monégasque d´Astronomie and of the Observatoire de Saint Martin de Peille on the French Riviera. An inspiration for many amateur astronomers, he has dedicated his life to high-resolution imaging, producing a wonderful photographic atlas of the moon.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000523/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1987 PM = 1988 XK4 = 1999 CN70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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