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43727 (1979 MQ2)
Classification: Main-belt Asteroid          SPK-ID: 2043727
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 .1598491077070021 3.3754e-08  
a 2.44266327444152 8.8695e-09 au
q 2.052205729593379 8.4481e-08 au
i 5.052558046171375 3.8536e-06 deg
node 162.195843418167 4.1157e-05 deg
peri 75.59979159611926 4.2704e-05 deg
M 345.514137390875 1.2698e-05 deg
tp 2459256.609408722225
(2021-Feb-11.10940872)
4.9309e-05 TDB
period 1394.420731788303
3.82
7.5949e-06
2.079e-08
d
yr
n .2581717209111706 1.4062e-09 deg/d
Q 2.833120819289661 1.0287e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1147  
   data-arc span      14961 days (40.96 yr)  
   first obs. used      1979-06-23  
   last obs. used      2020-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52463  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:21:59  

Additional Information
 Earth MOID = 1.04622 au 
 Jupiter MOID = 2.17915 au 
 T_jup = 3.478 
[ 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 15.16   n/a E2021B10  
diameter diameter 2.325 km 0.438 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.431   0.192 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43727 (1979 MQ2)          Discovered 1979-Jun-25 by Helin, E. F., Bus, S. J. at Siding Spring
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1979 MQ2 = 2001 AV15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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