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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07611799237325355 3.4729e-08  
a 2.974189426711447 2.0703e-08 au
q 2.747800098612413 1.039e-07 au
i 12.14688015841945 3.9439e-06 deg
node 63.74832096616083 1.7332e-05 deg
peri 241.7070059002256 3.5044e-05 deg
M 177.0036849907735 3.3491e-05 deg
tp 2458279.348270026759
(2018-Jun-09.84827003)
0.00017073 TDB
period 1873.489937837466
5.13
1.9562e-05
5.356e-08
d
yr
n .192154754999934 2.0064e-09 deg/d
Q 3.20057875481048 2.2279e-08 au
  Orbit Determination Parameters
   # obs. used (total)      983  
   data-arc span      8189 days (22.42 yr)  
   first obs. used      1998-10-18  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51307  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:16:14  

Additional Information
 Earth MOID = 1.75477 au 
 Jupiter MOID = 1.97128 au 
 T_jup = 3.223 
[ 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 14.52   n/a MPCxxxxx  
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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