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109068 (2001 QT21)
Classification: Main-belt Asteroid          SPK-ID: 2109068
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 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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456280.5 (2012-Dec-19.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2757839587834133 9.8414e-08  
q 1.844655417252612 2.5845e-07 au
tp 2456513.971146245824
(2013-Aug-09.47114625)
3.1801e-05 TDB
node 355.0570849747292 5.7078e-05 deg
peri 315.0165600786563 5.765e-05 deg
i 4.611907625102386 7.7976e-06 deg
  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
 Jupiter MOID = 2.05817 au 
 T_jup = 3.384 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.68526221025109E-15 -2.542446509337154E-14 1.007066825626542E-12 9.181187552615939E-14 4.209561642996967E-13 -4.745983848678514E-14
q -2.542446509337154E-14 6.679704390084906E-14 -2.530994356691474E-12 -2.396903061500451E-13 -1.088108222678761E-12 1.24532955473567E-13
tp 1.007066825626542E-12 -2.530994356691474E-12 1.011319225743867E-9 1.596140108157695E-11 2.68485188133441E-10 -5.618263992077557E-12
node 9.181187552615939E-14 -2.396903061500451E-13 1.596140108157695E-11 3.257912372504149E-9 -3.240406061031026E-9 -2.309389805632215E-10
peri 4.209561642996967E-13 -1.088108222678761E-12 2.68485188133441E-10 -3.240406061031026E-9 3.323528239956026E-9 2.275395224885805E-10
i -4.745983848678514E-14 1.24532955473567E-13 -5.618263992077557E-12 -2.309389805632215E-10 2.275395224885805E-10 6.080330950773789E-11

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 ]
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