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

Significant website upgrade scheduled for September 27. More details available here.

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 ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09498232297226553 3.1415e-08  
a 2.655553092530476 9.3056e-09 au
q 2.403322491025748 8.3211e-08 au
i 2.161989698574302 3.1298e-06 deg
node 204.0130342925201 8.5017e-05 deg
peri 152.7906155225267 8.6393e-05 deg
M 197.1638959948719 1.639e-05 deg
tp 2460111.455665728764
(2023-Jun-15.95566573)
7.325e-05 TDB
period 1580.632509202317
4.33
8.3083e-06
2.275e-08
d
yr
n .2277569250942952 1.1972e-09 deg/d
Q 2.907783694035205 1.0189e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2356  
   data-arc span      11967 days (32.76 yr)  
   first obs. used      1988-09-01  
   last obs. used      2021-06-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46851  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:25:55  

Additional Information
 Earth MOID = 1.39839 au 
 Jupiter MOID = 2.49029 au 
 T_jup = 3.381 
[ 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 14.00   n/a MPO636293  
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

Alternate Designations
 1988 RJ4 = 1991 GZ14 = 1999 BB6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-21 09:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin