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JPL Small-Body Database Browser
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27030 (1998 QW105)
Classification: Main-belt Asteroid          SPK-ID: 2027030
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1700112586367466 4.6733e-08  
a 2.463831449985553 1.2292e-08 au
q 2.044952364104709 1.1299e-07 au
i 9.800875522140046 4.85e-06 deg
node 138.2983879669591 2.929e-05 deg
peri 268.3651241163138 3.2927e-05 deg
M 79.21192350661123 1.7046e-05 deg
tp 2458289.684278918310
(2018-Jun-20.18427892)
6.5682e-05 TDB
period 1412.586068309142
3.87
1.0571e-05
2.894e-08
d
yr
n .2548517276762597 1.9071e-09 deg/d
Q 2.882710535866397 1.4382e-08 au
  Orbit Determination Parameters
   # obs. used (total)      898  
   data-arc span      9511 days (26.04 yr)  
   first obs. used      1993-04-17  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55105  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:01:17  

Additional Information
 Earth MOID = 1.08157 au 
 Jupiter MOID = 2.55643 au 
 T_jup = 3.448 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456776.5 (2014-Apr-29.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1684487159296484 4.673e-08  
q 2.049172861644474 1.1278e-07 au
tp 2456876.987645197859
(2014-Aug-07.48764520)
6.1843e-05 TDB
node 138.3278621529866 2.9265e-05 deg
peri 268.4824084296612 3.2984e-05 deg
i 9.802439320155312 4.8518e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      898  
   data-arc span      9511 days (26.04 yr)  
   first obs. used      1993-04-17  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55105  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:01:17  

Additional Information
 Jupiter MOID = 2.55643 au 
 T_jup = 3.448 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.183702285459381E-15 -5.250018361324558E-15 7.128639638374588E-13 -1.797065273712677E-14 1.464974852241342E-13 -9.170995185770438E-16
q -5.250018361324558E-15 1.27191163781456E-14 -1.523970277467364E-12 4.044863444195927E-14 -3.05638936927981E-13 2.11211649170817E-15
tp 7.128639638374588E-13 -1.523970277467364E-12 3.82450827612843E-9 -1.853774108392257E-11 9.664931766771956E-10 -4.345247807148768E-12
node -1.797065273712677E-14 4.044863444195927E-14 -1.853774108392257E-11 8.564531544202954E-10 -8.476718047794532E-10 -6.858484402392772E-12
peri 1.464974852241342E-13 -3.05638936927981E-13 9.664931766771956E-10 -8.476718047794532E-10 1.087964589381062E-9 5.737028229821202E-12
i -9.170995185770438E-16 2.11211649170817E-15 -4.345247807148768E-12 -6.858484402392772E-12 5.737028229821202E-12 2.353997117723338E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO474120  

27030 (1998 QW105)          Discovered 1998-Aug-25 by Elst, E. W. at La Silla
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QW105 = 1994 PA26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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