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 ]  
15236 (1988 RJ4)
Classification: Main-belt Asteroid          SPK-ID: 2015236
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09466237486451544 3.2072e-08  
a 2.656115458483068 1.0278e-08 au
q 2.40468126126871 8.4712e-08 au
i 2.161480567758847 3.2785e-06 deg
node 204.0302330781036 9.4917e-05 deg
peri 152.7166769030859 9.6617e-05 deg
M 107.0709005149597 1.7885e-05 deg
tp 2458530.240253358658
(2019-Feb-15.74025336)
7.8382e-05 TDB
period 1581.134631133787
4.33
9.1772e-06
2.513e-08
d
yr
n .227684596182587 1.3215e-09 deg/d
Q 2.907549655697427 1.1251e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2002  
   data-arc span      11474 days (31.41 yr)  
   first obs. used      1988-09-01  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48796  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:14:03  

Additional Information
 Earth MOID = 1.40056 au 
 Jupiter MOID = 2.49106 au 
 T_jup = 3.381 
[ 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 13.9   n/a MPO412295  
diameter diameter 3.518 km 0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.472   0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15236 (1988 RJ4)          Discovered 1988-Sep-01 by Debehogne, H. at La Silla
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1988 RJ4 = 1991 GZ14 = 1999 BB6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-02 20:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin