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91167 (1998 QM85)
Classification: Main-belt Asteroid          SPK-ID: 2091167
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08197040040865894 9.0593e-08  
a 3.168140820964973 3.5558e-08 au
q 2.908447049319457 3.0941e-07 au
i 13.40597858415719 7.8389e-06 deg
node 283.4760160743426 2.4024e-05 deg
peri 58.0202520399614 4.6301e-05 deg
M 317.4625879799757 3.7365e-05 deg
tp 2459243.873734324433
(2021-Jan-29.37373432)
0.00021383 TDB
period 2059.705567314522
5.64
3.4676e-05
9.494e-08
d
yr
n .174782262917983 2.9425e-09 deg/d
Q 3.427834592610489 3.8473e-08 au
  Orbit Determination Parameters
   # obs. used (total)      403  
   data-arc span      9373 days (25.66 yr)  
   first obs. used      1994-12-02  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59266  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:15:55  

Additional Information
 Earth MOID = 1.92369 au 
 Jupiter MOID = 1.90617 au 
 T_jup = 3.155 
[ 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 14.6   n/a MPO436409  

91167 (1998 QM85)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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