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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 
[ 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 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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1906-Jul-20 09:21 < 00:01 Juno 0.0436111286780101 0.0435968843233422 0.0436253748256416 6.52027349762689 6.52027345484275 2417411.889741999 0.291674761759741 836.316197300771 49.9920518678054 -31.9559589896323 69359.86739302 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 21:00:53 2020-Nov-12 21:00

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