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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2035532337699456 3.8051e-08  
a 2.409377557344156 6.7749e-09 au
q 1.91894096417402 9.0425e-08 au
i 1.470232181073451 4.7437e-06 deg
node 167.5798903527372 0.0001599 deg
peri 165.7956814382808 0.00016033 deg
M 8.793313249153869 1.1911e-05 deg
tp 2458967.133875827320
(2020-Apr-27.63387583)
4.5141e-05 TDB
period 1366.0157851559
3.74
5.7616e-06
1.577e-08
d
yr
n .2635401463965616 1.1116e-09 deg/d
Q 2.899814150514291 8.154e-09 au
  Orbit Determination Parameters
   # obs. used (total)      739  
   data-arc span      9041 days (24.75 yr)  
   first obs. used      1996-02-15  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54277  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:14:20  

Additional Information
 Earth MOID = .908788 au 
 Jupiter MOID = 2.47061 au 
 T_jup = 3.492 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457376.5 (2015-Dec-20.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2038905754114443 3.8083e-08  
q 1.917934139440776 9.0593e-08 au
tp 2457602.268432655039
(2016-Aug-01.76843265)
4.3319e-05 TDB
node 167.6182707910348 0.00015995 deg
peri 166.0867677063237 0.00016038 deg
i 1.47008494257628 4.745e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      739  
   data-arc span      9041 days (24.75 yr)  
   first obs. used      1996-02-15  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54277  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:14:20  

Additional Information
 Jupiter MOID = 2.47061 au 
 T_jup = 3.492 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.45032948875705E-15 -3.444433669100949E-15 8.416927673959998E-13 -2.417770411355031E-15 1.953620347645269E-13 -4.686678876864956E-16
q -3.444433669100949E-15 8.207028473610158E-15 -1.973555521936648E-12 8.046676580455469E-15 -4.607142450344397E-13 1.157246156600715E-15
tp 8.416927673959998E-13 -1.973555521936648E-12 1.87656180591029E-9 -8.041033448825677E-12 5.230164670543137E-10 -9.496696000431908E-13
node -2.417770411355031E-15 8.046676580455469E-15 -8.041033448825677E-12 2.558541801188921E-8 -2.557823957311495E-8 3.686443158461191E-10
peri 1.953620347645269E-13 -4.607142450344397E-13 5.230164670543137E-10 -2.557823957311495E-8 2.572173424002487E-8 -3.687648133821483E-10
i -4.686678876864956E-16 1.157246156600715E-15 -9.496696000431908E-13 3.686443158461191E-10 -3.687648133821483E-10 2.251478568873391E-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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