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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 ]

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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.


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 
[ 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 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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