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 ]  
21274 (1996 SG4)
Classification: Main-belt Asteroid          SPK-ID: 2021274
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2093567348271114 5.8771e-08  
a 2.57773454514302 2.2365e-08 AU
q 2.038068457520828 1.4807e-07 AU
i 3.098371609513444 7.1277e-06 deg
node 273.9627226161959 0.00021714 deg
peri 171.7059124075813 0.00021973 deg
M 112.3120141748405 3.1878e-05 deg
tp 2456528.893882988391
(2013-Aug-24.39388299)
0.00013361 JED
period 1511.665545058064
4.14
1.9673e-05
5.386e-08
d
yr
n .2381479164997255 3.0993e-09 deg/d
Q 3.117400632765213 2.7047e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      438  
   data-arc span      9248 days (25.32 yr)  
   first obs. used      1989-01-08  
   last obs. used      2014-05-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55074  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:57:08  

Additional Information
 Earth MOID = 1.05406 AU 
 T_jup = 3.393 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1 mag n/a MPO250422  

21274 (1996 SG4)          Discovered 1996-Sep-19 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1996 SG4 = 1992 YS1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Sep-02 21:20 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin