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52235 (1979 MW2)
Classification: Main-belt Asteroid          SPK-ID: 2052235
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1440082775114265 5.3381e-08  
a 3.040824776937352 1.7424e-08 au
q 2.602920838596536 1.5834e-07 au
i 3.644780097629584 4.9997e-06 deg
node 167.4421902733214 6.6259e-05 deg
peri 201.295537515369 6.7453e-05 deg
M 117.0825037251624 1.3611e-05 deg
tp 2457970.595051781192
(2017-Aug-05.09505178)
7.1442e-05 TDB
period 1936.803315131332
5.30
1.6647e-05
4.558e-08
d
yr
n .1858732877972118 1.5976e-09 deg/d
Q 3.478728715278168 1.9933e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1166  
   data-arc span      14558 days (39.86 yr)  
   first obs. used      1979-06-23  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53696  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:05:11  

Additional Information
 Earth MOID = 1.60158 au 
 Jupiter MOID = 1.97947 au 
 T_jup = 3.221 
[ 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 14.2   n/a MPO468400  
diameter diameter 10.463 km 0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.360 h n/a LCDB (Rev. 2019-January); 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.028   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52235 (1979 MW2)          Discovered 1979-Jun-25 by Helin, E. F., Bus, S. J. at Siding Spring
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1979 MW2 = 1990 QL8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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