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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2035532144306256 4.9765e-08  
a 2.409377560828005 8.7681e-09 au
q 1.918941013544445 1.2187e-07 au
i 1.470234075751511 5.7365e-06 deg
node 167.5798746232629 0.00016542 deg
peri 165.7956965163186 0.00016585 deg
M 8.793311620328941 1.2157e-05 deg
tp 2458967.133881935509
(2020-Apr-27.63388194)
4.6054e-05 TDB
period 1366.015788118695
3.74
7.4567e-06
2.042e-08
d
yr
n .2635401458249612 1.4386e-09 deg/d
Q 2.899814108111566 1.0553e-08 au
  Orbit Determination Parameters
   # obs. used (total)      581  
   data-arc span      8930 days (24.45 yr)  
   first obs. used      1996-02-15  
   last obs. used      2020-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57679  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:55:56  

Additional Information
 Earth MOID = .908788 au 
 Jupiter MOID = 2.47061 au 
 T_jup = 3.492 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456680.5 (2014-Jan-23.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .202361097967951 4.9621e-08  
q 1.923652841455131 1.2145e-07 au
tp 2456234.688611656836
(2012-Nov-03.18861166)
4.3122e-05 TDB
node 167.6768467685632 0.0001659 deg
peri 165.9084735827769 0.00016633 deg
i 1.467027084841119 5.729e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      581  
   data-arc span      8930 days (24.45 yr)  
   first obs. used      1996-02-15  
   last obs. used      2020-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57679  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:55:56  

Additional Information
 Jupiter MOID = 2.47061 au 
 T_jup = 3.492 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.462238143680524E-15 -6.017435830581486E-15 8.15061876403419E-13 1.924644028393731E-15 2.361121765900328E-13 3.07428737989921E-17
q -6.017435830581486E-15 1.475106459387561E-14 -1.942100293741197E-12 -7.26120325216735E-15 -5.598628793532593E-13 -9.159301737486076E-17
tp 8.15061876403419E-13 -1.942100293741197E-12 1.859541781230496E-9 -1.175720502300721E-11 5.316971678473316E-10 4.09743974583084E-14
node 1.924644028393731E-15 -7.26120325216735E-15 -1.175720502300721E-11 2.752170583140849E-8 -2.751493944124086E-8 2.625918275591374E-10
peri 2.361121765900328E-13 -5.598628793532593E-13 5.316971678473316E-10 -2.751493944124086E-8 2.766479550243746E-8 -2.625004850824431E-10
i 3.07428737989921E-17 -9.159301737486076E-17 4.09743974583084E-14 2.625918275591374E-10 -2.625004850824431E-10 3.282094011970647E-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

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