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 ]  
15286 (1991 RJ22)
Classification: Main-belt Asteroid          SPK-ID: 2015286
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .2115208470240931 7.2664e-08  
a 2.145010421621459 1.2248e-08 au
q 1.69129600036458 1.5662e-07 au
i 4.481448569644357 5.4777e-06 deg
node 120.5265320005839 7.6606e-05 deg
peri 214.9801145029573 7.7422e-05 deg
M 276.1118600781051 1.2031e-05 deg
tp 2457667.887192143998
(2016-Oct-06.38719214)
3.8751e-05 JED
period 1147.47316201626
3.14
9.8277e-06
2.691e-08
d
yr
n .3137328278488302 2.687e-09 deg/d
Q 2.598724842878337 1.4838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1247  
   data-arc span      8689 days (23.79 yr)  
   first obs. used      1991-08-07  
   last obs. used      2015-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53758  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:23:03  

Additional Information
 Earth MOID = .681654 au 
 Jupiter MOID = 2.76265 au 
 T_jup = 3.677 
[ 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 14.1 mag n/a MPO272713  

15286 (1991 RJ22)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RJ22 = 1969 RE2 = 1995 WK42 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Feb-12 12:07 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin