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100981 (1998 QK27)
Classification: Main-belt Asteroid          SPK-ID: 2100981
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1720306149204396 3.8471e-08  
a 2.400235836217453 1.0544e-08 au
q 1.987321789358889 9.2808e-08 au
i 2.004747216046263 4.2292e-06 deg
node 308.745947588094 0.00014556 deg
peri 5.667936736775911 0.00014626 deg
M 310.924986774153 1.5806e-05 deg
tp 2459185.655759054652
(2020-Dec-02.15575905)
6.0037e-05 TDB
period 1358.248706993075
3.72
8.9503e-06
2.45e-08
d
yr
n .265047187710546 1.7466e-09 deg/d
Q 2.813149883076016 1.2358e-08 au
  Orbit Determination Parameters
   # obs. used (total)      539  
   data-arc span      8472 days (23.20 yr)  
   first obs. used      1997-04-07  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58494  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:14:17  

Additional Information
 Earth MOID = .973464 au 
 Jupiter MOID = 2.46094 au 
 T_jup = 3.505 
[ 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 16.4   n/a MPO469017  

100981 (1998 QK27)          Discovered 1998-Aug-20 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 QK27 = 2002 TY101 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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