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7006 Folco (1981 ER31)
Classification: Main-belt Asteroid          SPK-ID: 2007006
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1237542587403376 5.522e-08  
a 2.439931061145041 9.8857e-09 au
q 2.137979201295511 1.3744e-07 au
i 4.708723890310848 5.4397e-06 deg
node 159.125639884909 4.883e-05 deg
peri 356.8828526461708 5.223e-05 deg
M 122.9158618339046 1.6666e-05 deg
tp 2458525.197399598849
(2019-Feb-10.69739960)
6.4439e-05 TDB
period 1392.08181589804
3.81
8.4603e-06
2.316e-08
d
yr
n .258605489913509 1.5717e-09 deg/d
Q 2.74188292099457 1.1109e-08 au
  Orbit Determination Parameters
   # obs. used (total)      879  
   data-arc span      15445 days (42.29 yr)  
   first obs. used      1977-02-13  
   last obs. used      2019-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57392  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 20:40:43  

Additional Information
 Earth MOID = 1.1476 au 
 Jupiter MOID = 2.24185 au 
 T_jup = 3.487 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456823.5 (2014-Jun-15.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1242141296056812 5.4921e-08  
q 2.135097020006807 1.3666e-07 au
tp 2457133.558936745574
(2015-Apr-21.05893675)
6.4772e-05 TDB
node 159.2017743799065 4.8893e-05 deg
peri 356.6069456053779 5.2287e-05 deg
i 4.706249713078809 5.4381e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      879  
   data-arc span      15445 days (42.29 yr)  
   first obs. used      1977-02-13  
   last obs. used      2019-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57392  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 20:40:43  

Additional Information
 Jupiter MOID = 2.24185 au 
 T_jup = 3.487 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.016322155692701E-15 -7.491885381989122E-15 9.851428603288561E-13 -1.438020985430019E-14 3.80326744509663E-13 -1.81678724458348E-15
q -7.491885381989122E-15 1.867595043730355E-14 -2.476508628111511E-12 3.471464538483612E-14 -9.582772154680311E-13 4.596723358649018E-15
tp 9.851428603288561E-13 -2.476508628111511E-12 4.195381093181481E-9 -5.747897498865111E-12 1.20557030454944E-9 -2.135954370180389E-13
node -1.438020985430019E-14 3.471464538483612E-14 -5.747897498865111E-12 2.390563750762635E-9 -2.383685456706355E-9 4.143388957614169E-11
peri 3.80326744509663E-13 -9.582772154680311E-13 1.20557030454944E-9 -2.383685456706355E-9 2.733917571673026E-9 -4.141222003655877E-11
i -1.81678724458348E-15 4.596723358649018E-15 -2.135954370180389E-13 4.143388957614169E-11 -4.141222003655877E-11 2.957341849462262E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO337314  

7006 Folco           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring in the course of the U.K. Schmidt-Caltech Asteroid Survey.
Luigi Folco (b. 1965) is curator of meteorites at the Museo Nazionale dell'Artartide of the University of Siena. His research focuses on the thermal histories of minor planets through the study of ordinary chondrites.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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