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122555 Aunon-Chancellor (2000 QG249)
Classification: Main-belt Asteroid          SPK-ID: 2122555
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1671277666110311 4.0436e-08  
a 2.357728651499855 1.1016e-08 au
q 1.963686727699846 9.6392e-08 au
i 6.512748076717 5.3489e-06 deg
node 322.8531488315317 4.086e-05 deg
peri 290.563569182689 4.5474e-05 deg
M 343.6356639957451 1.8426e-05 deg
tp 2459456.608383136278
(2021-Aug-30.10838314)
6.7563e-05 TDB
period 1322.327891790649
3.62
9.2673e-06
2.537e-08
d
yr
n .2722471500714553 1.908e-09 deg/d
Q 2.751770575299864 1.2857e-08 au
  Orbit Determination Parameters
   # obs. used (total)      586  
   data-arc span      7595 days (20.79 yr)  
   first obs. used      2000-08-28  
   last obs. used      2021-06-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58522  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 09:12:12  

Additional Information
 Earth MOID = .960613 au 
 Jupiter MOID = 2.33648 au 
 T_jup = 3.526 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.36   n/a MPCxxxxx  
diameter diameter 1.426 km 0.376 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.288   0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

122555 Auñón-Chancellor           Discovered 2000 Aug. 28 by M. W. Buie at Cerro Tololo.
Serena M. Auñón-Chancellor (b. 1976) is an engineer, physician, and astronaut. She has collected meteorites in Antarctica, served as an aquanaut on an undersea research station, and was a Flight Engineer on the International Space Station for 6 months in 2018.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2021-01-27Last Updated: 2021-02-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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