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JPL Small-Body Database Browser
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21701 Gabemendoza (1999 RP72)
Classification: Main-belt Asteroid          SPK-ID: 2021701
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0410101204304619 3.4328e-08  
a 2.85584965164352 1.519e-08 au
q 2.738730913498327 9.8234e-08 au
i 3.035154543486648 3.865e-06 deg
node 70.41550207482889 7.5749e-05 deg
peri 238.0044205858373 9.2396e-05 deg
M 141.4421820689962 5.4097e-05 deg
tp 2458307.907341464975
(2018-Jul-08.40734146)
0.00026488 TDB
period 1762.793485121595
4.83
1.4065e-05
3.851e-08
d
yr
n .2042213129549702 1.6294e-09 deg/d
Q 2.972968389788713 1.5813e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1598  
   data-arc span      8778 days (24.03 yr)  
   first obs. used      1995-11-25  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52966  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:53:40  

Additional Information
 Earth MOID = 1.72535 au 
 Jupiter MOID = 2.12488 au 
 T_jup = 3.300 
[ 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 14.1   n/a MPO452476  
diameter diameter 4.272 km 0.750 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.267   0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21701 Gabemendoza           Discovered 1999 Sept. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Gabriel Joel Mendoza (b. 1987) was awarded second place in the 2005 Intel International Science and Engineering Fair for his zoology team project. He attends the Americas High School, El Paso, Texas, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050822/MPCPages.arcLast Updated: 2005-08-26

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