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JPL Small-Body Database Browser
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277220 (2005 QX156)
Classification: Outer Main-belt Asteroid          SPK-ID: 2277220
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2591028723270479 6.8139e-08  
a 3.993614976946748 9.5717e-08 au
q 2.958857865451529 2.8189e-07 au
i 10.24867106313897 7.2341e-06 deg
node 251.357017354646 4.0116e-05 deg
peri 67.84832706113008 4.3233e-05 deg
M 273.3969690351532 2.2556e-05 deg
tp 2459301.758771484794
(2021-Mar-28.25877148)
0.00020219 TDB
period 2915.06145826466
7.98
0.0001048
2.869e-07
d
yr
n .1234965386336343 4.4399e-09 deg/d
Q 5.028372088441968 1.2052e-07 au
  Orbit Determination Parameters
   # obs. used (total)      192  
   data-arc span      5068 days (13.88 yr)  
   first obs. used      2005-07-09  
   last obs. used      2019-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .612  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:46:37  

Additional Information
 Earth MOID = 1.96536 au 
 Jupiter MOID = .665047 au 
 T_jup = 2.968 
[ 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 14.4   n/a MPO437262  

277220 (2005 QX156)          Discovered 2005-Aug-30 by NEAT at Palomar
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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