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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
109723 (2001 RR55)
Classification: Main-belt Asteroid          SPK-ID: 2109723
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04682930930882051 4.0632e-08  
a 3.111454838843971 2.4023e-08 au
q 2.96574755779532 1.261e-07 au
i .9319315182532962 5.1445e-06 deg
node 2.115728639375348 0.00026696 deg
peri 299.8179161749184 0.00027229 deg
M 119.9329569542453 5.4088e-05 deg
tp 2457932.648785346560
(2017-Jun-28.14878535)
0.00030118 TDB
period 2004.673639181276
5.49
2.3217e-05
6.356e-08
d
yr
n .1795803531127524 2.0798e-09 deg/d
Q 3.257162119892622 2.5148e-08 au
  Orbit Determination Parameters
   # obs. used (total)      637  
   data-arc span      9277 days (25.40 yr)  
   first obs. used      1994-05-05  
   last obs. used      2019-09-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59354  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 12:53:40  

Additional Information
 Earth MOID = 1.94965 au 
 Jupiter MOID = 1.85436 au 
 T_jup = 3.217 
[ 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 15.0   n/a MPO422368  

109723 (2001 RR55)          Discovered 2001-Sep-12 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 RR55 = 1994 JY6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-09 00:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin