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277338 (2005 TR42)
Classification: Main-belt Asteroid          SPK-ID: 2277338
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1772012738289688 3.4697e-08  
a 2.297685782617178 1.0915e-08 au
q 1.890532935078703 8.0845e-08 au
i 4.032854684176809 4.1072e-06 deg
node 296.8628638007311 5.7354e-05 deg
peri 30.08771040332025 5.9196e-05 deg
M 124.2419918260722 1.3378e-05 deg
tp 2458561.463844360334
(2019-Mar-18.96384436)
4.6367e-05 TDB
period 1272.13845904483
3.48
9.0644e-06
2.482e-08
d
yr
n .2829880642633049 2.0164e-09 deg/d
Q 2.704838630155653 1.2849e-08 au
  Orbit Determination Parameters
   # obs. used (total)      403  
   data-arc span      6262 days (17.14 yr)  
   first obs. used      2002-12-06  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51785  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:11:14  

Additional Information
 Earth MOID = .880035 au 
 Jupiter MOID = 2.62386 au 
 T_jup = 3.569 
[ 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 16.6   n/a MPO455058  

277338 (2005 TR42)          Discovered 2005-Oct-03 by NEAT at Palomar
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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