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 ]  
109068 (2001 QT21)
Classification: Main-belt Asteroid          SPK-ID: 2109068
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2736715007380699 9.789e-08  
a 2.548238521111062 1.4121e-08 au
q 1.850858260800038 2.5647e-07 au
i 4.610423129563962 7.7969e-06 deg
node 354.9752321791281 5.7013e-05 deg
peri 315.4991447316191 5.7604e-05 deg
M 241.7600164131148 9.853e-06 deg
tp 2459488.500651375507
(2021-Oct-01.00065138)
4.3239e-05 TDB
period 1485.793799743631
4.07
1.2351e-05
3.382e-08
d
yr
n .2422947249222045 2.0141e-09 deg/d
Q 3.245618781422086 1.7986e-08 au
  Orbit Determination Parameters
   # obs. used (total)      534  
   data-arc span      9683 days (26.51 yr)  
   first obs. used      1993-10-13  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5969  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:00:29  

Additional Information
 Earth MOID = .840107 au 
 Jupiter MOID = 2.05817 au 
 T_jup = 3.384 
[ 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 15.5   n/a MPO432614  

109068 (2001 QT21)          Discovered 2001-Aug-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-Oct-30 00:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin