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289314 Chisholm (2005 AS23)
Classification: Main-belt Asteroid          SPK-ID: 2289314
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09196218316994738 6.1856e-08  
a 3.072796985344803 2.8247e-08 au
q 2.790215866134462 1.8455e-07 au
i 12.37354490377743 5.0879e-06 deg
node 111.3148468238115 2.1668e-05 deg
peri 283.6717127808621 3.6692e-05 deg
M 60.49655764930188 2.7441e-05 deg
tp 2458869.881317028025
(2020-Jan-21.38131703)
0.00014977 TDB
period 1967.429726495928
5.39
2.7129e-05
7.428e-08
d
yr
n .1829798519112418 2.5231e-09 deg/d
Q 3.355378104555144 3.0845e-08 au
  Orbit Determination Parameters
   # obs. used (total)      392  
   data-arc span      7273 days (19.91 yr)  
   first obs. used      2001-03-17  
   last obs. used      2021-02-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49965  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 04:50:03  

Additional Information
 Earth MOID = 1.82978 au 
 Jupiter MOID = 2.03931 au 
 T_jup = 3.188 
[ 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 15.3   n/a MPO494554  

289314 Chisholm           Discovered 2003 Sept. 30 by D. D. Balam at Mauna Kea.
Eric Chisholm (b. 1975) is an engineering physicist who manages the NRC interpretative facility, The Centre of the Universe, Victoria, and passionately uses astronomy to excite people of all ages about science.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120207/MPCPages.arcLast Updated: 2012-02-09

Alternate Designations
 2005 AS23 = 2008 TU26 = 2011 EQ50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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