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277198 (2005 QQ55)
Classification: Main-belt Asteroid          SPK-ID: 2277198
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2094452702382342 1.1309e-07  
a 2.319690403750979 9.2002e-09 au
q 1.833842220268316 2.6702e-07 au
i 2.079832626575233 7.66e-06 deg
node 358.9471947935362 0.00012358 deg
peri 5.22190899338347 0.00012437 deg
M 52.87427483591324 1.3778e-05 deg
tp 2458810.966759007588
(2019-Nov-23.46675901)
4.8766e-05 TDB
period 1290.456785819099
3.53
7.6772e-06
2.102e-08
d
yr
n .2789709845041383 1.6596e-09 deg/d
Q 2.805538587233641 1.1127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      223  
   data-arc span      10248 days (28.06 yr)  
   first obs. used      1991-11-05  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59311  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:10:31  

Additional Information
 Earth MOID = .831721 au 
 Jupiter MOID = 2.6534 au 
 T_jup = 3.548 
[ 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 17.5   n/a MPO440343  

277198 (2005 QQ55)          Discovered 2005-Aug-28 by Spacewatch at Kitt Peak
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Alternate Designations
 2005 QQ55 = 2004 GL9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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