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70745 Aleserpieri (1999 VZ20)
Classification: Main-belt Asteroid          SPK-ID: 2070745
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05978106954661202 3.4415e-08  
a 2.576368732196354 1.2028e-08 au
q 2.422350653839207 9.0456e-08 au
i 10.4485240278661 3.9804e-06 deg
node 71.71396417615135 2.2434e-05 deg
peri 325.6531536217283 4.1731e-05 deg
M 50.60876243657654 3.5622e-05 deg
tp 2458988.159090533543
(2020-May-18.65909053)
0.00014933 TDB
period 1510.464269971499
4.14
1.0577e-05
2.896e-08
d
yr
n .238337315987483 1.669e-09 deg/d
Q 2.730386810553501 1.2747e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1374  
   data-arc span      14007 days (38.35 yr)  
   first obs. used      1982-11-07  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4759  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:51:33  

Additional Information
 Earth MOID = 1.43756 au 
 Jupiter MOID = 2.56089 au 
 T_jup = 3.401 
[ 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 14.59   n/a E2021B10  
diameter diameter 3.717 km 0.758 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.244   0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70745 Aleserpieri           Discovered 1999 Nov. 9 by V. Goretti at Pianoro.
Italian scientist Alessandro Serpieri (1823-1885) was a teacher of mathematics and physics. As an astronomer, he determined the Perseid radiant and studied the solar eclipse of 1870 Dec. 22. He also analyzed the Italian earthquakes of 1872 and 1875.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050721/MPCPages.arcLast Updated: 2005-07-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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