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109242 (2001 QT98)
Classification: Main-belt Asteroid          SPK-ID: 2109242
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2892679570597788 3.317e-08  
a 2.776948759645269 1.5308e-08 au
q 1.973666465082996 9.6792e-08 au
i 8.550244871048324 6.5278e-06 deg
node 177.8055925456569 2.6658e-05 deg
peri 94.57575196804112 3.0265e-05 deg
M 51.80578151029263 1.0929e-05 deg
tp 2458757.265062930987
(2019-Sep-30.76506293)
5.1205e-05 TDB
period 1690.247203923516
4.63
1.3976e-05
3.826e-08
d
yr
n .212986596968978 1.7612e-09 deg/d
Q 3.580231054207543 1.9736e-08 au
  Orbit Determination Parameters
   # obs. used (total)      653  
   data-arc span      7060 days (19.33 yr)  
   first obs. used      2000-03-03  
   last obs. used      2019-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50757  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:22:07  

Additional Information
 Earth MOID = .980208 au 
 Jupiter MOID = 1.66001 au 
 T_jup = 3.257 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457254.5 (2015-Aug-20.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2884297181892264 3.3173e-08  
q 1.977262197441602 9.6808e-08 au
tp 2457066.842082331844
(2015-Feb-13.34208233)
5.3214e-05 TDB
node 177.8413700009129 2.665e-05 deg
peri 94.70104797195262 3.0287e-05 deg
i 8.549076763014602 6.5276e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      653  
   data-arc span      7060 days (19.33 yr)  
   first obs. used      2000-03-03  
   last obs. used      2019-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50757  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:22:07  

Additional Information
 Jupiter MOID = 1.66001 au 
 T_jup = 3.257 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.100478728943071E-15 -3.193907383513396E-15 -1.072284707861407E-13 7.051353241909307E-15 -6.865407380452126E-15 -5.198019602046273E-15
q -3.193907383513396E-15 9.371850674483908E-15 1.551095618643998E-13 -1.632960513606321E-14 -1.736428954000125E-14 1.854041035335955E-14
tp -1.072284707861407E-13 1.551095618643998E-13 2.831737244537248E-9 -3.499573398275893E-11 7.776383016560508E-10 2.601938126197624E-12
node 7.051353241909307E-15 -1.632960513606321E-14 -3.499573398275893E-11 7.10196952408758E-10 -7.102735091686832E-10 5.8040323314404E-11
peri -6.865407380452126E-15 -1.736428954000125E-14 7.776383016560508E-10 -7.102735091686832E-10 9.173065169625558E-10 -5.627172170104836E-11
i -5.198019602046273E-15 1.854041035335955E-14 2.601938126197624E-12 5.8040323314404E-11 -5.627172170104836E-11 4.261004655985116E-11

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 15.8   n/a MPO474961  
diameter diameter 4.176 km 0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109242 (2001 QT98)          Discovered 2001-Aug-20 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QT98 = 2000 EF188 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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