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 ]  
9188 (1991 RM15)
Classification: Main-belt Asteroid          SPK-ID: 2009188
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2211423995867554 6.1015e-08  
a 2.389289146512132 1.2466e-08 au
q 1.860916011345848 1.4682e-07 au
i 2.088119402749915 6.1976e-06 deg
node 309.1028424818552 0.00013812 deg
peri 4.447180372477707 0.00013836 deg
M 241.2120056176816 1.1526e-05 deg
tp 2457845.614294260198
(2017-Apr-02.11429426)
4.4265e-05 JED
period 1348.967517861581
3.69
1.0557e-05
2.89e-08
d
yr
n .2668707698541783 2.0885e-09 deg/d
Q 2.917662281678416 1.5222e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1083  
   data-arc span      12648 days (34.63 yr)  
   first obs. used      1980-10-10  
   last obs. used      2015-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51478  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:04:29  

Additional Information
 Earth MOID = .844991 au 
 Jupiter MOID = 2.35897 au 
 T_jup = 3.499 
[ 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 14.4 mag n/a MPO337335  

9188 (1991 RM15)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar
Reference: 19980910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RM15 = 1980 TP7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Feb-14 16:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin