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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2090535119191324 5.8423e-08  
a 2.578371296227256 2.169e-08 au
q 2.039353721719463 1.4665e-07 au
i 3.09789534337231 6.6091e-06 deg
node 273.9641629383101 0.00018016 deg
peri 171.7174698875193 0.00018209 deg
M 207.5456577264255 2.6553e-05 deg
tp 2458040.903816379362
(2017-Oct-14.40381638)
0.00011419 JED
period 1512.22569628659
4.14
1.9082e-05
5.224e-08
d
yr
n .2380597029160484 3.0039e-09 deg/d
Q 3.117388870735049 2.6224e-08 au
  Orbit Determination Parameters
   # obs. used (total)      464  
   data-arc span      9650 days (26.42 yr)  
   first obs. used      1989-01-08  
   last obs. used      2015-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54467  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:28:43  

Additional Information
 Earth MOID = 1.05515 au 
 Jupiter MOID = 2.11878 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 15.2 mag n/a MPO337438  

21274 (1996 SG4)          Discovered 1996-Sep-19 by Beijing Schmidt CCD Asteroid Program at Xinglong
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 2016-Feb-08 12:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin