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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 ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1180111501653146 3.9697e-08  
a 2.907521869536523 1.2786e-08 au
q 2.564401869581712 1.1652e-07 au
i 2.633525644981503 4.8662e-06 deg
node 15.93050747716229 6.8421e-05 deg
peri 19.92060668662246 7.1488e-05 deg
M 23.73053042310993 1.8582e-05 deg
tp 2458881.132016639719
(2020-Feb-01.63201664)
9.3566e-05 TDB
period 1810.851811717296
4.96
1.1945e-05
3.27e-08
d
yr
n .1988014688284179 1.3114e-09 deg/d
Q 3.250641869491333 1.4295e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2218  
   data-arc span      13836 days (37.88 yr)  
   first obs. used      1982-03-18  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4699  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:32:28  

Additional Information
 Earth MOID = 1.57137 au 
 Jupiter MOID = 2.16608 au 
 T_jup = 3.273 
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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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