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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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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

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
0.00014738 TDB
period 1687.596782899185
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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2174-Feb-26 04:47 00:03 Inter 0.00903535172534458 0.00900819541694015 0.00906251320581316 3.62359339962721 3.62359295249681 2515153.698982752 2.92413484055787 1395.05756007979 35.2474093990151 14.1335801499172 9396.60897868714 T 30 CATAB v2.0f-lin.ifort 2020-Nov-13 02:46:03 2020-Nov-13 02:46

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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