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20513 Lazio (1999 RC34)
Classification: Main-belt Asteroid          SPK-ID: 2020513
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07130903969226061 3.5824e-08  
a 2.555915843790314 8.7309e-09 au
q 2.373655939435392 9.0474e-08 au
i 2.734533582117 3.4485e-06 deg
node 196.7393546147242 8.5467e-05 deg
peri 150.6845352283782 8.9565e-05 deg
M 81.06922850154345 2.6683e-05 deg
tp 2458864.397462476288
(2020-Jan-15.89746248)
0.00011046 TDB
period 1492.513444928526
4.09
7.6475e-06
2.094e-08
d
yr
n .2412038573074562 1.2359e-09 deg/d
Q 2.738175748145235 9.3535e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1390  
   data-arc span      10772 days (29.49 yr)  
   first obs. used      1991-09-09  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49002  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:23:02  

Additional Information
 Earth MOID = 1.36536 au 
 Jupiter MOID = 2.53633 au 
 T_jup = 3.432 
[ 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 14.77   n/a MPCxxxxx  
diameter diameter 2.611 km 0.304 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.195   0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20513 Lazio           Discovered 1999 Sept. 10 by F. Mallia and G. Masi at Campo Catino Astronomical Observatory.
Lazio is the Italian region containing Rome, the everlasting city. The Regione Lazio allowed the creation of Campo Catino Astronomical Observatory, where this minor planet was discovered. It was the first region in Italy that has approved a law against light pollution.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 1999 RC34 = 1998 KG1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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