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JPL Small-Body Database Browser
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20488 Pic-du-Midi (1999 OL)
Classification: Main-belt Asteroid          SPK-ID: 2020488
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1525286521710446 4.6959e-08  
a 2.734131079907969 1.471e-08 au
q 2.317097751430643 1.3024e-07 au
i 7.035748386938196 5.2851e-06 deg
node 345.82767402 3.1386e-05 deg
peri 354.8287378291089 3.3781e-05 deg
M 200.4404321629471 1.3925e-05 deg
tp 2459732.393305951741
6.6089e-05 TDB
period 1651.305488691861
n .2180093280530342 1.7594e-09 deg/d
Q 3.151164408385294 1.6954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1454  
   data-arc span      8402 days (23.00 yr)  
   first obs. used      1997-02-01  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50492  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 23:07:34  

Additional Information
 Earth MOID = 1.30882 au 
 Jupiter MOID = 2.24236 au 
 T_jup = 3.325 
[ 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 14.2   n/a MPO324498  
diameter diameter 7.894 km 0.199 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 2.812 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.059   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

20488 Pic-du-Midi           Discovered 1999 July 17 at Pises.
The Pic-du-Midi Observatory was founded in the Pyrénées in the south of France in 1881. At an elevation of 2870 meters, the observatory pioneered observations of the solar corona and cosmic rays, as well as high-resolution techniques. The observatory is still in operation, with telescopes of aperture 2, 1 and 0.5 meter.
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

Alternate Designations
 1999 OL = 1998 HD60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2020-Feb-26 13:15 UT
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