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120572 (1995 MQ4)
Classification: Main-belt Asteroid          SPK-ID: 2120572
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .038254153595581 6.6134e-08  
a 2.652658795387179 2.2463e-08 au
q 2.551183578391768 1.7081e-07 au
i 9.264822545452311 5.5952e-06 deg
node 265.14126072149 4.0958e-05 deg
peri 287.4042991150832 9.8525e-05 deg
M 23.41708581608339 8.4897e-05 deg
tp 2458897.851912847849
(2020-Feb-18.35191285)
0.00037277 TDB
period 1578.049107604751
4.32
2.0045e-05
5.488e-08
d
yr
n .2281297826950566 2.8978e-09 deg/d
Q 2.754134012382588 2.3323e-08 au
  Orbit Determination Parameters
   # obs. used (total)      396  
   data-arc span      9126 days (24.99 yr)  
   first obs. used      1995-06-29  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57565  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:56:15  

Additional Information
 Earth MOID = 1.56461 au 
 Jupiter MOID = 2.28762 au 
 T_jup = 3.370 
[ 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 15.73   n/a E2021B55  
diameter diameter 4.243 km 0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120572 (1995 MQ4)          Discovered 1995-Jun-29 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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