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
JPL Small-Body Database Browser
Search: [ help ]  
46928 (1998 SJ57)
Classification: Main-belt Asteroid          SPK-ID: 2046928
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1080949983823365 5.0554e-08  
a 2.581416881506517 1.2923e-08 au
q 2.302378627875934 1.3578e-07 au
i 13.73924479865491 4.6871e-06 deg
node 169.7117990664034 1.3946e-05 deg
peri 11.12667498829851 2.034e-05 deg
M 260.0757457205074 1.5992e-05 deg
tp 2459420.988440003153
(2021-Jul-25.48844000)
6.8368e-05 TDB
period 1514.905860370296
4.15
1.1376e-05
3.115e-08
d
yr
n .2376385288469367 1.7845e-09 deg/d
Q 2.8604551351371 1.432e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1445  
   data-arc span      13565 days (37.14 yr)  
   first obs. used      1982-12-09  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50696  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:37:38  

Additional Information
 Earth MOID = 1.30777 au 
 Jupiter MOID = 2.10116 au 
 T_jup = 3.376 
[ 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 14.3   n/a MPO417141  

46928 (1998 SJ57)          Discovered 1998-Sep-17 by LONEOS at Anderson Mesa
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SJ57 = 2001 ME11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-07 01:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin