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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2891441678416344 2.7793e-08  
a 2.776921669805252 1.3027e-08 au
q 1.97399096442801 7.8966e-08 au
i 8.550031717065583 6.1597e-06 deg
node 177.804997588308 2.4537e-05 deg
peri 94.58241842270657 2.7181e-05 deg
M 94.41202681172309 1.0441e-05 deg
tp 2458757.229641025653
(2019-Sep-30.72964103)
4.8139e-05 TDB
period 1690.222470798077
4.63
1.1894e-05
3.256e-08
d
yr
n .2129897136144557 1.4988e-09 deg/d
Q 3.579852375182493 1.6794e-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-Apr-13 16:14:43  

Additional Information
 Earth MOID = .978783 au 
 Jupiter MOID = 1.65956 au 
 T_jup = 3.257 
[ show covariance matrix ]

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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