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7321 (1979 MZ2)
Classification: Main-belt Asteroid          SPK-ID: 2007321
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08426131370977273 6.2869e-08  
a 2.533287273458129 1.3414e-08 au
q 2.319829159792298 1.5921e-07 au
i 2.288823161215812 7.3615e-06 deg
node 154.4584969943157 0.00010459 deg
peri 328.046917525616 0.00011482 deg
M 239.6650284104828 4.5348e-05 deg
tp 2458092.782557189343
(2017-Dec-05.28255719)
0.00018643 JED
period 1472.736630484248
4.03
1.1698e-05
3.203e-08
d
yr
n .2444428912463656 1.9416e-09 deg/d
Q 2.746745387123959 1.4545e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1261  
   data-arc span      22357 days (61.21 yr)  
   first obs. used      1954-04-08  
   last obs. used      2015-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52423  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 13:33:25  

Additional Information
 Earth MOID = 1.33444 au 
 Jupiter MOID = 2.30036 au 
 T_jup = 3.443 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO250281  
rotation period rot_per 83.1774 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]

7321 (1979 MZ2)          Discovered 1979-Jun-25 by Helin, E. F., Bus, S. J. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1979 MZ2 = 1990 FU2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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