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55720 Daandehoop (1972 RE)
Classification: Inner Main-belt Asteroid          SPK-ID: 2055720
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09870832661804853 5.7828e-08  
a 1.917265623441441 1.0089e-08 au
q 1.728015542069227 1.0887e-07 au
i 22.61669728306397 8.334e-06 deg
node 178.4768227659292 1.4939e-05 deg
peri 274.1215532842417 4.5026e-05 deg
M 102.6126318170845 3.932e-05 deg
tp 2457324.111365128046
(2015-Oct-28.61136513)
0.00010639 JED
period 969.6653013565654
2.65
7.654e-06
2.096e-08
d
yr
n .3712621246695728 2.9305e-09 deg/d
Q 2.106515704813655 1.1085e-08 au
  Orbit Determination Parameters
   # obs. used (total)      508  
   data-arc span      15913 days (43.57 yr)  
   first obs. used      1972-09-15  
   last obs. used      2016-04-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51021  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 14:43:30  

Additional Information
 Earth MOID = .848961 au 
 Jupiter MOID = 3.04406 au 
 T_jup = 3.829 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6 mag n/a MPO365897  

55720 Daandehoop           Discovered 1972 Sept. 15 by T. Gehrels at Palomar.
Daniël "Daan" de Hoop (b. 1945), honorary member and chairman of the Dutch Association for Spaceflight (1995-2005), made many valuable contributions to the public understanding of spaceflight and space exploration. The name was suggested by C. E. Koppeschaar.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100130/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1972 RE = 2000 BY 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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