Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
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 ]  
20613 Chibaken (1999 RE240)
Classification: Main-belt Asteroid          SPK-ID: 2020613
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1091750350874936 4.8154e-08  
a 3.054965292633849 1.8108e-08 au
q 2.721439349619474 1.5233e-07 au
i 12.40911171239332 4.9425e-06 deg
node 130.5307975402978 1.9998e-05 deg
peri 213.1074783907591 2.8325e-05 deg
M 336.6841415421737 1.8946e-05 deg
tp 2459126.815532492248
(2020-Oct-04.31553249)
0.00010249 TDB
period 1950.328862197459
5.34
1.7341e-05
4.748e-08
d
yr
n .1845842549827128 1.6412e-09 deg/d
Q 3.388491235648225 2.0085e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1364  
   data-arc span      9874 days (27.03 yr)  
   first obs. used      1993-07-20  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51844  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:37:02  

Additional Information
 Earth MOID = 1.72114 au 
 Jupiter MOID = 1.9922 au 
 T_jup = 3.191 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6   n/a MPO350965  
diameter diameter 6.157 km 0.815 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.186   0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

20613 Chibaken           Discovered 1999 Sept. 11 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Chiba prefecture is located east of Tokyo. In 2011, some areas were damaged during the Tohoku earthquake.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09

Alternate Designations
 1999 RE240 = 1993 OF2 = 1996 AK9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-27 16:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin