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JPL Small-Body Database Browser
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136941 (1998 QT57)
Classification: Main-belt Asteroid          SPK-ID: 2136941
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1910822866131441 1.0526e-07  
a 2.470018522007173 1.8909e-08 au
q 1.998041734845224 2.4967e-07 au
i .5566940962185302 7.9218e-06 deg
node 210.2495667325493 0.00065746 deg
peri 180.8515837961165 0.00065784 deg
M 85.56724180920476 2.8723e-05 deg
tp 2458263.481474568153
(2018-May-24.98147457)
0.00010995 TDB
period 1417.910249181522
3.88
1.6282e-05
4.458e-08
d
yr
n .2538947724003034 2.9155e-09 deg/d
Q 2.941995309169122 2.2522e-08 au
  Orbit Determination Parameters
   # obs. used (total)      285  
   data-arc span      8947 days (24.50 yr)  
   first obs. used      1994-08-11  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62098  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:14:26  

Additional Information
 Earth MOID = 1.00299 au 
 Jupiter MOID = 2.49529 au 
 T_jup = 3.459 
[ 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 17.1   n/a MPO375982  

136941 (1998 QT57)          Discovered 1998-Aug-30 by Spacewatch at Kitt Peak
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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