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175787 (1999 QL)
Classification: Main-belt Asteroid          SPK-ID: 2175787
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1363227780386413 7.3026e-08  
a 2.377602027435373 1.5545e-08 au
q 2.053480713985077 1.725e-07 au
i 5.420856879244537 4.937e-06 deg
node 300.8785407621754 7.9894e-05 deg
peri 84.7930747266594 8.1847e-05 deg
M 245.264712013533 2.2511e-05 deg
tp 2459627.277661877886
(2022-Feb-16.77766188)
8.658e-05 TDB
period 1339.081994496418
3.67
1.3133e-05
3.596e-08
d
yr
n .2688408935969478 2.6366e-09 deg/d
Q 2.701723340885668 1.7664e-08 au
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      7584 days (20.76 yr)  
   first obs. used      1999-08-17  
   last obs. used      2020-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57604  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:50  

Additional Information
 Earth MOID = 1.06458 au 
 Jupiter MOID = 2.76468 au 
 T_jup = 3.522 
[ 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 16.95   n/a E2021B55  

175787 (1999 QL)          Discovered 1999-Aug-17 by Bickel, W. at Bergisch Gladbach
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22

Alternate Designations
 1999 QL = 2003 UB142 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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