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277018 (2005 AC44)
Classification: Main-belt Asteroid          SPK-ID: 2277018
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1018409847360406 5.4782e-08  
a 3.049675482125654 3.4811e-08 au
q 2.739093527900618 1.8156e-07 au
i 2.927167252749526 5.9333e-06 deg
node 79.80770534453723 0.00011185 deg
peri 29.59580069342201 0.00011683 deg
M 332.1687119766862 3.5443e-05 deg
tp 2459150.886784760298
(2020-Oct-28.38678476)
0.00019254 TDB
period 1945.265431781515
5.33
3.3307e-05
9.119e-08
d
yr
n .185064718736252 3.1687e-09 deg/d
Q 3.36025743635069 3.8356e-08 au
  Orbit Determination Parameters
   # obs. used (total)      194  
   data-arc span      7621 days (20.87 yr)  
   first obs. used      1998-12-14  
   last obs. used      2019-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56502  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 05:20:32  

Additional Information
 Earth MOID = 1.75631 au 
 Jupiter MOID = 1.74193 au 
 T_jup = 3.227 
[ 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 16.2   n/a MPO413219  

277018 (2005 AC44)          Discovered 2005-Jan-15 by Spacewatch at Kitt Peak
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Alternate Designations
 2005 AC44 = 2003 SJ229 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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