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181144 (2005 QJ177)
Classification: Main-belt Asteroid          SPK-ID: 2181144
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0248696935054344 4.0402e-08  
a 2.865183376958857 1.8649e-08 au
q 2.793927144537024 1.1294e-07 au
i 3.031006912027604 4.7582e-06 deg
node 63.40603253841547 8.2756e-05 deg
peri 207.9913049177162 0.00012995 deg
M 139.5231482834454 0.00010032 deg
tp 2458513.952124257686
(2019-Jan-30.45212426)
0.00049292 TDB
period 1771.44250476004
4.85
1.7295e-05
4.735e-08
d
yr
n .2032242079732448 1.9842e-09 deg/d
Q 2.936439609380689 1.9113e-08 au
  Orbit Determination Parameters
   # obs. used (total)      426  
   data-arc span      7444 days (20.38 yr)  
   first obs. used      2000-09-26  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54192  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:23  

Additional Information
 Earth MOID = 1.77639 au 
 Jupiter MOID = 2.06591 au 
 T_jup = 3.298 
[ 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 15.98   n/a MPCxxxxx  

181144 (2005 QJ177)          Discovered 2005-Aug-27 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Alternate Designations
 2005 QJ177 = 2001 YG146 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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