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JPL Small-Body Database Browser
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145820 Valeromeo (1998 TL7)
Classification: Main-belt Asteroid          SPK-ID: 2145820
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1984180857565541 5.2355e-08  
a 2.438861959316871 1.2162e-08 au
q 1.954947637924739 1.2875e-07 au
i 3.124055460022805 5.1213e-06 deg
node 38.17164581350681 8.41e-05 deg
peri 307.6931195132959 8.463e-05 deg
M 271.5774618827706 9.8803e-06 deg
tp 2459342.195872382339
(2021-May-07.69587238)
3.8921e-05 TDB
period 1391.166965763373
3.81
1.0406e-05
2.849e-08
d
yr
n .2587755523668992 1.9356e-09 deg/d
Q 2.922776280709004 1.4575e-08 au
  Orbit Determination Parameters
   # obs. used (total)      572  
   data-arc span      7976 days (21.84 yr)  
   first obs. used      1997-05-05  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61766  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:52:22  

Additional Information
 Earth MOID = .949842 au 
 Jupiter MOID = 2.4947 au 
 T_jup = 3.474 
[ 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 16.2   n/a MPO436731  

145820 Valeromeo           Discovered 1998 Oct. 15 by G. Masi at Ceccano.
Valentina Romeo (b. 1980), a very dear friend of the discoverer, is by vocation a singer who has worked with several well-known choruses and music directors. She also teaches singing and has a very strong curiosity and interest in astronomy. She currently works in the telecommunications field.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080618/MPCPages.arcLast Updated: 2008-06-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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