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109291 (2001 QN123)
Classification: Main-belt Asteroid          SPK-ID: 2109291
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02386083601462168 4.1712e-08  
a 3.063302772810186 2.7317e-08 au
q 2.990209807685026 1.2623e-07 au
i 11.78439507909089 4.8367e-06 deg
node 129.2538884366429 2.1448e-05 deg
peri 100.4702084757471 0.00010306 deg
M 278.3823681226003 0.00010153 deg
tp 2459444.481426022801
(2021-Aug-17.98142602)
0.00055322 TDB
period 1958.318437960791
5.36
2.6195e-05
7.172e-08
d
yr
n .1838311854811877 2.4589e-09 deg/d
Q 3.136395737935346 2.7968e-08 au
  Orbit Determination Parameters
   # obs. used (total)      712  
   data-arc span      7192 days (19.69 yr)  
   first obs. used      2000-05-27  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55856  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:22:50  

Additional Information
 Earth MOID = 2.00274 au 
 Jupiter MOID = 1.92512 au 
 T_jup = 3.200 
[ 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 14.9   n/a MPO338039  
diameter diameter 3.608 km 0.766 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.870 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.179   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109291 (2001 QN123)          Discovered 2001-Aug-19 by LINEAR at Socorro
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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