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101043 (1998 QP99)
Classification: Main-belt Asteroid          SPK-ID: 2101043
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .171719333157518 4.5497e-08  
a 2.374052043206099 7.6901e-09 au
q 1.966381409465505 1.1148e-07 au
i 3.138176279648897 3.553e-06 deg
node 131.2680459880245 8.1366e-05 deg
peri 273.9566484492677 8.2265e-05 deg
M 299.4349860867524 1.1116e-05 deg
tp 2459225.277636417683
(2021-Jan-10.77763642)
4.1462e-05 TDB
period 1336.084050542356
3.66
6.4918e-06
1.777e-08
d
yr
n .2694441265531651 1.3092e-09 deg/d
Q 2.781722676946693 9.0106e-09 au
  Orbit Determination Parameters
   # obs. used (total)      999  
   data-arc span      10576 days (28.96 yr)  
   first obs. used      1991-12-03  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47894  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:28:45  

Additional Information
 Earth MOID = .978659 au 
 Jupiter MOID = 2.60706 au 
 T_jup = 3.521 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO280445  

101043 (1998 QP99)          Discovered 1998-Aug-26 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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