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186028 (2001 QL254)
Classification: Main-belt Asteroid          SPK-ID: 2186028
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2649997568773364 3.2933e-08  
a 2.384653596764103 9.5824e-09 au
q 1.75272097338495 8.1279e-08 au
i 5.604474154985995 4.7875e-06 deg
node 74.90105609499514 5.3054e-05 deg
peri 215.9223761806103 5.4216e-05 deg
M 111.6174502680291 1.2948e-05 deg
tp 2458783.471270653937
(2019-Oct-26.97127065)
4.7287e-05 TDB
period 1345.04364867744
3.68
8.1073e-06
2.22e-08
d
yr
n .2676493066630085 1.6133e-09 deg/d
Q 3.016586220143255 1.2122e-08 au
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      8621 days (23.60 yr)  
   first obs. used      1997-05-04  
   last obs. used      2020-12-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58313  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:49:37  

Additional Information
 Earth MOID = .738271 au 
 Jupiter MOID = 2.18545 au 
 T_jup = 3.481 
[ 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 17.11   n/a MPCxxxxx  

186028 (2001 QL254)          Discovered 2001-Aug-25 by LONEOS at Anderson Mesa
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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