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100969 (1998 QV21)
Classification: Main-belt Asteroid          SPK-ID: 2100969
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1933336105097604 7.8497e-08  
a 2.462820550493726 1.6833e-08 au
q 1.986674561429138 1.8665e-07 au
i 2.104430050737226 6.5156e-06 deg
node 200.5007949142149 0.00011748 deg
peri 162.9526127422519 0.00011889 deg
M 256.2450374682678 2.819e-05 deg
tp 2459607.368396390250
(2022-Jan-27.86839639)
0.0001143 TDB
period 1411.716790468631
3.87
1.4474e-05
3.963e-08
d
yr
n .2550086550153556 2.6145e-09 deg/d
Q 2.938966539558313 2.0088e-08 au
  Orbit Determination Parameters
   # obs. used (total)      476  
   data-arc span      8913 days (24.40 yr)  
   first obs. used      1995-12-25  
   last obs. used      2020-05-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .559  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:35  

Additional Information
 Earth MOID = .982916 au 
 Jupiter MOID = 2.5227 au 
 T_jup = 3.462 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456078.5 (2012-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1921921199578631 7.7796e-08  
q 1.990263601840383 1.8453e-07 au
tp 2456779.769328079711
(2014-May-02.26932808)
8.9198e-05 TDB
node 200.6556751449039 0.00011799 deg
peri 162.2903744916971 0.0001194 deg
i 2.09736849567264 6.5064e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      476  
   data-arc span      8913 days (24.40 yr)  
   first obs. used      1995-12-25  
   last obs. used      2020-05-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .559  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:35  

Additional Information
 Jupiter MOID = 2.5227 au 
 T_jup = 3.462 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.052166077601327E-15 -1.432569818704591E-14 4.366920802118857E-12 3.723963981527496E-14 7.366377468958622E-13 -2.45684535629229E-15
q -1.432569818704591E-14 3.405207872899004E-14 -9.695038321769925E-12 -8.449255190606461E-14 -1.614770565741676E-12 5.565589963743037E-15
tp 4.366920802118857E-12 -9.695038321769925E-12 7.956359909477059E-9 4.660526619223713E-11 1.623985819829808E-9 -4.005341987988555E-12
node 3.723963981527496E-14 -8.449255190606461E-14 4.660526619223713E-11 1.392132375536369E-8 -1.390221016227946E-8 3.405565924453156E-11
peri 7.366377468958622E-13 -1.614770565741676E-12 1.623985819829808E-9 -1.390221016227946E-8 1.425740471368801E-8 -3.489410532552315E-11
i -2.45684535629229E-15 5.565589963743037E-15 -4.005341987988555E-12 3.405565924453156E-11 -3.489410532552315E-11 4.233345822999467E-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 16.24   n/a E2021B55  

100969 (1998 QV21)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 QV21 = 2002 RE84 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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