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277877 (2006 JW54)
Classification: Main-belt Asteroid          SPK-ID: 2277877
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 .1280196379097702 8.9469e-08  
a 3.100620259295345 4.9623e-08 au
q 2.703679976404657 3.0027e-07 au
i 16.16458015530279 7.0674e-06 deg
node 221.2468075940066 2.6341e-05 deg
peri 344.6517006337391 4.0114e-05 deg
M 239.1814391316806 3.5185e-05 deg
tp 2459669.771690169135
(2022-Mar-31.27169017)
0.00020592 TDB
period 1994.211872160005
5.46
4.7874e-05
1.311e-07
d
yr
n .1805224434904555 4.3337e-09 deg/d
Q 3.497560542186033 5.5976e-08 au
  Orbit Determination Parameters
   # obs. used (total)      136  
   data-arc span      8882 days (24.32 yr)  
   first obs. used      1995-07-01  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49648  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 05:25:20  

Additional Information
 Earth MOID = 1.70144 au 
 Jupiter MOID = 1.49597 au 
 T_jup = 3.149 
[ 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 15.8   n/a MPO455061  

277877 (2006 JW54)          Discovered 2006-May-08 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Alternate Designations
 2006 JW54 = 2008 SQ289 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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