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72804 Caldentey (2001 GQ)
Classification: Main-belt Asteroid          SPK-ID: 2072804
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 .07615494661914163 3.6109e-08  
a 2.973912344265812 2.3704e-08 au
q 2.747434208438243 1.0566e-07 au
i 12.1482382360248 5.3406e-06 deg
node 63.75415851956349 1.8324e-05 deg
peri 241.5822547289529 4.0756e-05 deg
M 138.7055776568116 3.7587e-05 deg
tp 2458278.757803695249
(2018-Jun-09.25780370)
0.00019517 TDB
period 1873.228135876269
5.13
2.2396e-05
6.132e-08
d
yr
n .1921816105071459 2.2977e-09 deg/d
Q 3.200390480093381 2.5509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      821  
   data-arc span      7772 days (21.28 yr)  
   first obs. used      1998-10-18  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52881  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:47:41  

Additional Information
 Earth MOID = 1.75624 au 
 Jupiter MOID = 1.97208 au 
 T_jup = 3.224 
[ 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 14.4   n/a MPO453138  
diameter diameter 4.111 km 0.854 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.239   0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72804 Caldentey           Discovered 2001 Apr. 11 by S. Sanchez at the Observatorio Astronomico de Mallorca.
Maria-Dolors Caldentey Rius (b. 1956) is a founding member of the Observatorio Astronomico de Mallorca. In 1991 she designed and managed the construction of the observatory. In 2003-2004 she did the same for the Planetarium of Mallorca and the Observatorio Astronomico of La Sagra in Granada.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070106/MPCPages.arcLast Updated: 2007-01-09

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Alternate Designations
 2001 GQ = 1999 XR200 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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