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 ]  
85754 (1998 SJ156)
Classification: Outer Main-belt Asteroid          SPK-ID: 2085754
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1570613684760533 6.1102e-08  
a 3.237288258295307 2.8605e-08 au
q 2.728835334295987 2.022e-07 au
i 3.29819909225715 7.9683e-06 deg
node 14.2818742454731 9.2311e-05 deg
peri 33.09008397647526 9.5147e-05 deg
M 171.8239945452034 2.5039e-05 deg
tp 2457585.065778907974
(2016-Jul-15.56577891)
0.00014033 TDB
period 2127.504488303343
5.82
2.8198e-05
7.72e-08
d
yr
n .1692123339711943 2.2427e-09 deg/d
Q 3.745741182294627 3.3097e-08 au
  Orbit Determination Parameters
   # obs. used (total)      565  
   data-arc span      13671 days (37.43 yr)  
   first obs. used      1981-10-30  
   last obs. used      2019-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58557  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:50:18  

Additional Information
 Earth MOID = 1.73887 au 
 Jupiter MOID = 1.6604 au 
 T_jup = 3.163 
[ 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 14.5   n/a MPO348041  

85754 (1998 SJ156)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 SJ156 = 1981 UU4 = 2000 CB15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin