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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 | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2035532302744067 3.9088e-08  
a 2.40937755795559 6.9354e-09 au
q 1.918940973083068 9.3239e-08 au
i 1.470232722927395 4.9966e-06 deg
node 167.5798879545306 0.00015995 deg
peri 165.7956836276425 0.00016038 deg
M 8.793313053439404 1.1919e-05 deg
tp 2458967.133876557255
(2020-Apr-27.63387656)
4.5173e-05 TDB
period 1366.015785675886
3.74
5.8982e-06
1.615e-08
d
yr
n .2635401462962428 1.1379e-09 deg/d
Q 2.899814142828112 8.3472e-09 au
  Orbit Determination Parameters
   # obs. used (total)      697  
   data-arc span      9023 days (24.70 yr)  
   first obs. used      1996-02-15  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54367  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:51  

Additional Information
 Earth MOID = .908788 au 
 Jupiter MOID = 2.47061 au 
 T_jup = 3.492 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457260.5 (2015-Aug-26.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2038624250492991 3.9119e-08  
q 1.917976371517159 9.3375e-08 au
tp 2457602.281471812191
(2016-Aug-01.78147181)
4.3327e-05 TDB
node 167.6187079223452 0.00016001 deg
peri 166.0881745449585 0.00016043 deg
i 1.470080089520577 4.9979e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      697  
   data-arc span      9023 days (24.70 yr)  
   first obs. used      1996-02-15  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54367  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:51  

Additional Information
 Jupiter MOID = 2.47061 au 
 T_jup = 3.492 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.530279021033317E-15 -3.646655515205185E-15 8.372192636768365E-13 -2.659471477373216E-15 2.003737842919875E-13 -2.805112136860119E-16
q -3.646655515205185E-15 8.718809790586754E-15 -1.962073237272555E-12 8.573470349419209E-15 -4.734186040543664E-13 7.226411602264847E-16
tp 8.372192636768365E-13 -1.962073237272555E-12 1.877229079310508E-9 -8.74854012297517E-12 5.235950144198765E-10 -6.700851404558716E-13
node -2.659471477373216E-15 8.573470349419209E-15 -8.74854012297517E-12 2.56021712510507E-8 -2.559515754208266E-8 3.626673624950682E-10
peri 2.003737842919875E-13 -4.734186040543664E-13 5.235950144198765E-10 -2.559515754208266E-8 2.573916456650305E-8 -3.627153254913068E-10
i -2.805112136860119E-16 7.226411602264847E-16 -6.700851404558716E-13 3.626673624950682E-10 -3.627153254913068E-10 2.497923226272901E-11

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 16.3   n/a MPO474740  

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

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