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109444 (2001 QG201)
Classification: Main-belt Asteroid          SPK-ID: 2109444
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09984862010005205 4.5428e-08  
a 3.117453521419249 3.1578e-08 au
q 2.806180089079489 1.4029e-07 au
i 4.182581259515778 5.1716e-06 deg
node 251.9080175694227 7.3848e-05 deg
peri 2.905979226176584 7.8696e-05 deg
M 232.926629533634 2.7048e-05 deg
tp 2459710.160211224336
(2022-May-10.66021122)
0.00015205 TDB
period 2010.473753101412
5.50
3.0547e-05
8.363e-08
d
yr
n .1790622729815071 2.7207e-09 deg/d
Q 3.428726953759009 3.4731e-08 au
  Orbit Determination Parameters
   # obs. used (total)      480  
   data-arc span      8982 days (24.59 yr)  
   first obs. used      1995-06-03  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57681  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 15:49:36  

Additional Information
 Earth MOID = 1.79144 au 
 Jupiter MOID = 1.61526 au 
 T_jup = 3.205 
[ 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 15.1   n/a MPO333679  
diameter diameter 5.364 km 0.254 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109444 (2001 QG201)          Discovered 2001-Aug-22 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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