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46522 (1979 MS7)
Classification: Main-belt Asteroid          SPK-ID: 2046522
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1345606846827652 4.424e-08  
a 2.742359232443434 1.405e-08 au
q 2.373345496479744 1.2505e-07 au
i 4.47972493261661 3.651e-06 deg
node 252.0531218845988 5.7141e-05 deg
peri 75.69157957949166 5.9217e-05 deg
M 17.84287903847754 1.374e-05 deg
tp 2459118.285698074034
(2020-Sep-25.78569807)
6.3408e-05 TDB
period 1658.765305168663
4.54
1.2748e-05
3.49e-08
d
yr
n .2170288942493858 1.6679e-09 deg/d
Q 3.111372968407125 1.5941e-08 au
  Orbit Determination Parameters
   # obs. used (total)      816  
   data-arc span      15139 days (41.45 yr)  
   first obs. used      1979-06-23  
   last obs. used      2020-12-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52812  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:49:44  

Additional Information
 Earth MOID = 1.36486 au 
 Jupiter MOID = 2.21889 au 
 T_jup = 3.332 
[ 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 15.26   n/a E2021B10  
diameter diameter 2.970 km 0.644 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.167   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46522 (1979 MS7)          Discovered 1979-Jun-25 by Helin, E. F., Bus, S. J. at Siding Spring
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1979 MS7 = 2002 PF56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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