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85477 (1997 MQ2)
Classification: Main-belt Asteroid          SPK-ID: 2085477
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2034982194286009 3.6872e-08  
a 2.409875784566813 6.6041e-09 au
q 1.919470353363364 8.7414e-08 au
i 1.470228461870629 4.395e-06 deg
node 167.5707868556353 0.00015807 deg
peri 165.8843837426901 0.0001585 deg
M 113.0732318039707 1.2064e-05 deg
tp 2458967.311854575068
(2020-Apr-27.81185458)
4.5088e-05 TDB
period 1366.439517894363
3.74
5.6169e-06
1.538e-08
d
yr
n .2634584226272581 1.083e-09 deg/d
Q 2.900281215770263 7.948e-09 au
  Orbit Determination Parameters
   # obs. used (total)      789  
   data-arc span      9101 days (24.92 yr)  
   first obs. used      1996-02-15  
   last obs. used      2021-01-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53486  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:50:58  

Additional Information
 Earth MOID = .908568 au 
 Jupiter MOID = 2.47025 au 
 T_jup = 3.491 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457574.5 (2016-Jul-05.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2039829538920654 3.6879e-08  
q 1.917990132235331 8.7507e-08 au
tp 2457602.207133007843
(2016-Aug-01.70713301)
4.3266e-05 TDB
node 167.616413013912 0.00015813 deg
peri 166.0657253375376 0.00015855 deg
i 1.470105106580989 4.3966e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      789  
   data-arc span      9101 days (24.92 yr)  
   first obs. used      1996-02-15  
   last obs. used      2021-01-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53486  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:50:58  

Additional Information
 Jupiter MOID = 2.47025 au 
 T_jup = 3.491 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.360041937456076E-15 -3.221848258883114E-15 8.456876730480891E-13 -3.200506627346889E-15 1.954804333673863E-13 -6.497683875583447E-16
q -3.221848258883114E-15 7.657482902090758E-15 -1.9827493551714E-12 9.813603245691669E-15 -4.599914073338062E-13 1.581120118432992E-15
tp 8.456876730480891E-13 -1.9827493551714E-12 1.871958871703099E-9 -8.57366938514561E-12 5.209442011793937E-10 -1.190054504783846E-12
node -3.200506627346889E-15 9.813603245691669E-15 -8.57366938514561E-12 2.500393016595503E-8 -2.499712840889651E-8 3.502844283272163E-10
peri 1.954804333673863E-13 -4.599914073338062E-13 5.209442011793937E-10 -2.499712840889651E-8 2.513927240246697E-8 -3.504799657817357E-10
i -6.497683875583447E-16 1.581120118432992E-15 -1.190054504783846E-12 3.502844283272163E-10 -3.504799657817357E-10 1.93300387348862E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.42   n/a MPCxxxxx  

85477 (1997 MQ2)          Discovered 1997-Jun-28 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1997 MQ2 = 2000 EF25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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