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JPL Small-Body Database Browser
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7556 Perinaldo (1982 FX2)
Classification: Main-belt Asteroid          SPK-ID: 2007556
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1177023598329974 3.977e-08  
a 2.906659175731927 1.3177e-08 au
q 2.564538531518044 1.1659e-07 au
i 2.63385925837132 4.9218e-06 deg
node 15.93277471947751 7.2246e-05 deg
peri 19.90946430990531 7.5156e-05 deg
M 304.1890278268654 1.8929e-05 deg
tp 2458881.112284949857
(2020-Feb-01.61228495)
9.4984e-05 TDB
period 1810.045921948229
4.96
1.2308e-05
3.37e-08
d
yr
n .1988899815384334 1.3525e-09 deg/d
Q 3.248779819945809 1.4728e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2083  
   data-arc span      13768 days (37.69 yr)  
   first obs. used      1982-03-18  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4762  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 21:45:38  

Additional Information
 Earth MOID = 1.57086 au 
 Jupiter MOID = 2.16674 au 
 T_jup = 3.273 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8   n/a MPO328759  
diameter diameter 9.604 km 0.519 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.159   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

7556 Perinaldo           Discovered 1982 Mar. 18 by H. Debehogne at the European Southern Observatory.
Perinaldo is a village in Liguria, Italy, where the astronomer Giovanni Domenico Cassini (1625-1712) was born. A well-organized group of amateur astronomers in Perinaldo is today very active in the popularization of astronomy. The name was suggested by M. Di Martino.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120207/MPCPages.arcLast Updated: 2012-02-09

Alternate Designations
 1982 FX2 = 1995 XF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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