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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .288974560644475 2.7782e-08  
a 2.77732985974147 1.3014e-08 au
q 1.974752183757898 7.8946e-08 au
i 8.549511261506 6.1591e-06 deg
node 177.8000417719918 2.4537e-05 deg
peri 94.6078623219218 2.7186e-05 deg
M 136.1410336659756 1.0547e-05 deg
tp 2458757.168408508596
(2019-Sep-30.66840851)
4.8185e-05 TDB
period 1690.595162525396
4.63
1.1883e-05
3.253e-08
d
yr
n .2129427600290984 1.4967e-09 deg/d
Q 3.579907535725043 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-Aug-25 18:34:52  

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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2888166367854853 2.7767e-08  
q 1.975458814870818 7.8847e-08 au
tp 2457066.958141910747
(2015-Feb-13.45814191)
4.6983e-05 TDB
node 177.8418854501301 2.4534e-05 deg
peri 94.64426961448119 2.7197e-05 deg
i 8.549616337556976 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-Aug-25 18:34:52  

Additional Information
 Jupiter MOID = 1.6585 au 
 T_jup = 3.257 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.710169497802435E-16 -2.174377589331795E-15 -5.4986559034154E-13 5.524299785164118E-15 -1.469653264605564E-13 -1.779191286227272E-15
q -2.174377589331795E-15 6.216864028885759E-15 1.520649793363807E-12 -1.12736218069026E-14 4.145757832560784E-13 7.910868028284016E-15
tp -5.4986559034154E-13 1.520649793363807E-12 2.207409960949268E-9 -1.87429135260473E-11 5.641377252564315E-10 1.76321743570829E-12
node 5.524299785164118E-15 -1.12736218069026E-14 -1.87429135260473E-11 6.019008593815337E-10 -5.985744766329263E-10 7.380699218105992E-11
peri -1.469653264605564E-13 4.145757832560784E-13 5.641377252564315E-10 -5.985744766329263E-10 7.396799850313061E-10 -7.195709338557848E-11
i -1.779191286227272E-15 7.910868028284016E-15 1.76321743570829E-12 7.380699218105992E-11 -7.195709338557848E-11 3.795254294970873E-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

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