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79420 (1997 MM4)
Classification: Main-belt Asteroid          SPK-ID: 2079420
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1842670493044811 3.833e-08  
a 2.374897426191762 1.1183e-08 au
q 1.937282085066599 9.2476e-08 au
i 5.265121493894951 4.433e-06 deg
node 102.1632244761925 7.2482e-05 deg
peri 209.4505101055947 7.4663e-05 deg
M 71.02610035466718 2.1033e-05 deg
tp 2458736.756854169065
(2019-Sep-10.25685417)
7.7185e-05 TDB
period 1336.7977690598
3.66
9.4425e-06
2.585e-08
d
yr
n .269300269892877 1.9022e-09 deg/d
Q 2.812512767316925 1.3244e-08 au
  Orbit Determination Parameters
   # obs. used (total)      634  
   data-arc span      7982 days (21.85 yr)  
   first obs. used      1997-06-28  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62347  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:48:23  

Additional Information
 Earth MOID = .924875 au 
 Jupiter MOID = 2.45366 au 
 T_jup = 3.513 
[ 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 15.8   n/a MPO284681  

79420 (1997 MM4)          Discovered 1997-Jun-28 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1997 MM4 = 2001 OG71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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