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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .184004091809901 5.2256e-08  
a 2.306975181700436 9.3622e-09 au
q 1.882482308563666 1.2062e-07 au
i 25.8060564027633 6.2259e-06 deg
node 106.2710776806301 9.3774e-06 deg
peri 197.9776074696145 1.6179e-05 deg
M 330.7027419639275 1.118e-05 deg
tp 2458704.656717798502
(2019-Aug-09.15671780)
3.9696e-05 TDB
period 1279.861015023752
3.50
7.7909e-06
2.133e-08
d
yr
n .2812805420073827 1.7122e-09 deg/d
Q 2.731468054837206 1.1085e-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 = .874113 au 
 Jupiter MOID = 2.5018 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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