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 ]  
109902 (2001 SH21)
Classification: Main-belt Asteroid          SPK-ID: 2109902
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05031480973812953 4.0848e-08  
a 2.55307863430706 1.1048e-08 au
q 2.424620968575417 1.0655e-07 au
i 4.605037031816964 4.1372e-06 deg
node 117.0071697647048 5.5084e-05 deg
peri 258.2846062430011 6.9397e-05 deg
M 206.5095420466393 4.3363e-05 deg
tp 2459635.792304683588
(2022-Feb-25.29230468)
0.00018097 TDB
period 1490.028974671413
4.08
9.6715e-06
2.648e-08
d
yr
n .2416060399626715 1.5682e-09 deg/d
Q 2.681536300038704 1.1604e-08 au
  Orbit Determination Parameters
   # obs. used (total)      852  
   data-arc span      10657 days (29.18 yr)  
   first obs. used      1991-02-22  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58605  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:10:40  

Additional Information
 Earth MOID = 1.42972 au 
 Jupiter MOID = 2.53664 au 
 T_jup = 3.433 
[ 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 15.6   n/a MPO268016  

109902 (2001 SH21)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-05 11:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin