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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2889745606382031 2.7782e-08  
a 2.777329859755511 1.3014e-08 au
q 1.9747521837853 7.8946e-08 au
i 8.549511261461536 6.1591e-06 deg
node 177.800041772063 2.4537e-05 deg
peri 94.60786232430655 2.7186e-05 deg
M 136.1410336618812 1.0547e-05 deg
tp 2458757.168408522976
(2019-Sep-30.66840852)
4.8185e-05 TDB
period 1690.595162538216
4.63
1.1883e-05
3.253e-08
d
yr
n .2129427600274836 1.4967e-09 deg/d
Q 3.579907535725722 1.6775e-08 au
  Orbit Determination Parameters
   # obs. used (total)      763  
   data-arc span      7620 days (20.86 yr)  
   first obs. used      2000-03-03  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5065  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:19:03  

Additional Information
 Earth MOID = .981151 au 
 Jupiter MOID = 1.6585 au 
 T_jup = 3.257 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457854.5 (2017-Apr-11.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2888166367839351 2.7767e-08  
q 1.97545881487712 7.8847e-08 au
tp 2457066.958141910369
(2015-Feb-13.45814191)
4.6983e-05 TDB
node 177.8418854500314 2.4534e-05 deg
peri 94.64426961496179 2.7197e-05 deg
i 8.549616337559232 6.1606e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      763  
   data-arc span      7620 days (20.86 yr)  
   first obs. used      2000-03-03  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5065  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:19:03  

Additional Information
 Jupiter MOID = 1.6585 au 
 T_jup = 3.257 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.710169497690633E-16 -2.174377589315474E-15 -5.498655903304739E-13 5.524299785749836E-15 -1.469653264640795E-13 -1.779191286312762E-15
q -2.174377589315474E-15 6.216864028882948E-15 1.520649793376E-12 -1.127362182338294E-14 4.14575783292128E-13 7.910868027154051E-15
tp -5.498655903304739E-13 1.520649793376E-12 2.207409961032838E-9 -1.8742913514609E-11 5.641377252797592E-10 1.763217437355091E-12
node 5.524299785749836E-15 -1.127362182338294E-14 -1.8742913514609E-11 6.019008593785982E-10 -5.985744766307661E-10 7.380699218127031E-11
peri -1.469653264640795E-13 4.14575783292128E-13 5.641377252797592E-10 -5.985744766307661E-10 7.396799850424012E-10 -7.195709338571502E-11
i -1.779191286312762E-15 7.910868027154051E-15 1.763217437355091E-12 7.380699218127031E-11 -7.195709338571502E-11 3.795254295048159E-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 15.85   n/a E2021B55  
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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