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180878 (2005 JQ91)
Classification: Main-belt Asteroid          SPK-ID: 2180878
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08244449701084904 6.1996e-08  
a 2.231507261424471 1.2764e-08 au
q 2.047531767680273 1.3866e-07 au
i 7.373799454598453 6.5859e-06 deg
node 238.4878946933638 4.0105e-05 deg
peri 343.7720991738205 5.334e-05 deg
M 253.1624665981759 3.5498e-05 deg
tp 2459561.840994439401
(2021-Dec-13.34099444)
0.00012164 TDB
period 1217.575451774361
3.33
1.0447e-05
2.86e-08
d
yr
n .2956695615662878 2.5369e-09 deg/d
Q 2.415482755168669 1.3817e-08 au
  Orbit Determination Parameters
   # obs. used (total)      299  
   data-arc span      6788 days (18.58 yr)  
   first obs. used      2002-06-23  
   last obs. used      2021-01-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50436  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:28:20  

Additional Information
 Earth MOID = 1.038 au 
 Jupiter MOID = 2.56836 au 
 T_jup = 3.626 
[ 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 17.2   n/a MPO494004  

180878 (2005 JQ91)          Discovered 2005-May-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Alternate Designations
 2005 JQ91 = 2003 WX105 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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