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JPL Small-Body Database Browser
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52757 (1998 MH4)
Classification: Main-belt Asteroid          SPK-ID: 2052757
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1837308558515188 5.2306e-08  
a 2.306457708243213 9.3278e-09 au
q 1.882690259522354 1.2061e-07 au
i 25.80829780205753 6.2264e-06 deg
node 106.2704325635708 9.3764e-06 deg
peri 197.9988610811589 1.6192e-05 deg
M 83.23034817714893 1.1155e-05 deg
tp 2458704.701558774533
(2019-Aug-09.20155877)
3.9742e-05 TDB
period 1279.430414186404
3.50
7.7615e-06
2.125e-08
d
yr
n .2813752088494205 1.7069e-09 deg/d
Q 2.730225156964071 1.1042e-08 au
  Orbit Determination Parameters
   # obs. used (total)      753  
   data-arc span      7802 days (21.36 yr)  
   first obs. used      1998-06-23  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48539  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 04:15:07  

Additional Information
 Earth MOID = .875017 au 
 Jupiter MOID = 2.5051 au 
 T_jup = 3.434 
[ 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 14.9   n/a MPO449341  
diameter diameter 2.891 km 0.501 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.279   0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52757 (1998 MH4)          Discovered 1998-Jun-23 by LONEOS at Anderson Mesa
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 MH4 = 2000 AC49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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