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 ]  
9049 (1991 RQ27)
Classification: Main-belt Asteroid          SPK-ID: 2009049
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2219189706811474 4.9529e-08  
a 2.431142378550181 1.6615e-08 AU
q 1.891625764323008 1.1584e-07 AU
i 4.614881933711313 5.0198e-06 deg
node 110.9940925152819 6.7531e-05 deg
peri 212.4650302347372 6.914e-05 deg
M 78.44189646323008 1.8104e-05 deg
tp 2456698.810912298477
(2014-Feb-10.31091230)
6.7403e-05 JED
period 1384.567131462188
3.79
1.4194e-05
3.886e-08
d
yr
n .2600090611856558 2.6655e-09 deg/d
Q 2.970658992777354 2.0303e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1081  
   data-arc span      8598 days (23.54 yr)  
   first obs. used      1991-09-12  
   last obs. used      2015-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49993  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:33:55  

Additional Information
 Earth MOID = .881894 AU 
 T_jup = 3.469 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO324392  

9049 (1991 RQ27)          Discovered 1991-Sep-12 by Holt, H. E. at Palomar
Reference: 19980808/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RQ27 = 1995 WP37 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-May-22 13:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin