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100998 (1998 QH41)
Classification: Main-belt Asteroid          SPK-ID: 2100998
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2523155428495029 4.7184e-08  
a 2.299559304668246 5.4653e-09 au
q 1.719344750396252 1.0733e-07 au
i 2.700732301612557 5.397e-06 deg
node 160.3807413119613 7.1984e-05 deg
peri 163.1236645015487 7.2601e-05 deg
M 151.5761091195869 9.5378e-06 deg
tp 2458664.217528305307
(2019-Jun-29.71752831)
3.303e-05 TDB
period 1273.694719645905
3.49
4.5407e-06
1.243e-08
d
yr
n .2826422960284252 1.0076e-09 deg/d
Q 2.87977385894024 6.8443e-09 au
  Orbit Determination Parameters
   # obs. used (total)      745  
   data-arc span      8190 days (22.42 yr)  
   first obs. used      1998-08-17  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51941  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:26:45  

Additional Information
 Earth MOID = .70541 au 
 Jupiter MOID = 2.46095 au 
 T_jup = 3.548 
[ 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 16.2   n/a MPO436470  

100998 (1998 QH41)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 QH41 = 2001 JL10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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