Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09852609886985426 6.9877e-08  
a 1.917180247505458 1.1229e-08 au
q 1.728287956888403 1.3492e-07 au
i 22.61558559559563 9.82e-06 deg
node 178.4779088120537 1.9159e-05 deg
peri 274.1326394028559 5.2735e-05 deg
M 28.36525231292289 4.9721e-05 deg
tp 2457324.102878424345
(2015-Oct-28.60287842)
0.00013384 JED
period 969.6005332096342
2.65
8.5181e-06
2.332e-08
d
yr
n .3712869245320078 3.2618e-09 deg/d
Q 2.106072538122512 1.2335e-08 au
  Orbit Determination Parameters
   # obs. used (total)      429  
   data-arc span      15797 days (43.25 yr)  
   first obs. used      1972-09-15  
   last obs. used      2015-12-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51742  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 15:17:49  

Additional Information
 Earth MOID = .850214 au 
 Jupiter MOID = 3.04436 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 15.5 mag n/a MPO244642  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Feb-10 06:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin