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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1181981397360758 1.834e-08  
a 2.908120556695247 1.0977e-08 au
q 2.564386116765627 5.1085e-08 au
i 2.633434822510732 7.9915e-07 deg
node 15.92410953360662 8.3505e-06 deg
peri 19.96077190077657 1.6178e-05 deg
M 63.44026253496019 1.2352e-05 deg
tp 2458881.287781034218
(2020-Feb-01.78778103)
6.2193e-05 TDB
period 1811.411148627485
4.96
1.0256e-05
2.808e-08
d
yr
n .1987400818818929 1.1252e-09 deg/d
Q 3.251854996624866 1.2274e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2682  
   data-arc span      14241 days (38.99 yr)  
   first obs. used      1982-03-18  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44606  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 19:49:05  

Additional Information
 Earth MOID = 1.57026 au 
 Jupiter MOID = 2.16574 au 
 T_jup = 3.272 
[ 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 12.85   n/a E2021B10  
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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