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277357 (2005 TQ121)
Classification: Main-belt Asteroid          SPK-ID: 2277357
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2061515010888348 6.8467e-08  
a 2.449061720060866 3.6391e-08 au
q 1.944183970211114 1.8064e-07 au
i 1.47926910681926 7.5466e-06 deg
node 311.753217537851 0.00038508 deg
peri 3.216744458169874 0.00038641 deg
M 336.0480726851014 4.9806e-05 deg
tp 2459093.639946984237
(2020-Sep-01.13994698)
0.00019544 TDB
period 1399.90325093666
3.83
3.1202e-05
8.543e-08
d
yr
n .2571606286071041 5.7318e-09 deg/d
Q 2.953939469910617 4.3893e-08 au
  Orbit Determination Parameters
   # obs. used (total)      97  
   data-arc span      4873 days (13.34 yr)  
   first obs. used      2001-09-19  
   last obs. used      2015-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61472  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-10 16:15:23  

Additional Information
 Earth MOID = .930425 au 
 Jupiter MOID = 2.33723 au 
 T_jup = 3.467 
[ 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 18.0   n/a MPO234293  

277357 (2005 TQ121)          Discovered 2005-Oct-07 by CSS at Catalina
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

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