Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0646608668343434 4.1277e-08  
a 2.774045041116888 1.3785e-08 au
q 2.594672884120758 1.175e-07 au
i 7.506261551218942 3.8651e-06 deg
node 277.9159081516094 3.5462e-05 deg
peri 22.5207235049098 4.9719e-05 deg
M 66.99878977260015 3.3641e-05 deg
tp 2458686.425160555132
(2019-Jul-21.92516056)
0.00015841 TDB
period 1687.596784716733
4.62
1.258e-05
3.444e-08
d
yr
n .2133210985350549 1.5901e-09 deg/d
Q 2.953417198113018 1.4677e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2042  
   data-arc span      12052 days (33.00 yr)  
   first obs. used      1987-08-06  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46176  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:44:16  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-21 07:48 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin