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 ]  
243115 (2007 RR157)
Classification: Main-belt Asteroid          SPK-ID: 2243115
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .122469356625821 4.6073e-08  
a 2.390400090909784 1.8914e-08 au
q 2.097649329697759 1.1034e-07 au
i 6.730945928697086 6.3739e-06 deg
node 45.93889330014909 4.5559e-05 deg
peri 249.0448302489982 5.271e-05 deg
M 206.0665703536785 2.9021e-05 deg
tp 2459577.711222957370
(2021-Dec-29.21122296)
0.00011204 TDB
period 1349.908468498927
3.70
1.6022e-05
4.387e-08
d
yr
n .2666847481891222 3.1652e-09 deg/d
Q 2.683150852121809 2.123e-08 au
  Orbit Determination Parameters
   # obs. used (total)      366  
   data-arc span      6487 days (17.76 yr)  
   first obs. used      2002-04-02  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6337  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:17:04  

Additional Information
 Earth MOID = 1.09306 au 
 Jupiter MOID = 2.48949 au 
 T_jup = 3.513 
[ 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 16.3   n/a MPO254434  

243115 (2007 RR157)          Discovered 2007-Sep-11 by PMO NEO Survey Program at Purple Mountain
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

Alternate Designations
 2007 RR157 = 2006 HD54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-08 01:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin