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JPL Small-Body Database Browser
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52746 (1998 HS149)
Classification: Main-belt Asteroid          SPK-ID: 2052746
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .206869660962903 3.1406e-08  
a 2.270544156459128 9.6187e-09 au
q 1.800837456611128 6.9419e-08 au
i 4.223613325178897 3.5653e-06 deg
node 259.3025367249901 6.3676e-05 deg
peri 27.77111704927135 6.4729e-05 deg
M 11.02066825266465 1.267e-05 deg
tp 2458562.244068262031
(2019-Mar-19.74406826)
4.3877e-05 TDB
period 1249.664277149332
3.42
7.9409e-06
2.174e-08
d
yr
n .2880773713250512 1.8306e-09 deg/d
Q 2.740250856307129 1.1609e-08 au
  Orbit Determination Parameters
   # obs. used (total)      747  
   data-arc span      10430 days (28.56 yr)  
   first obs. used      1991-04-08  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55577  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:58:25  

Additional Information
 Earth MOID = .785121 au 
 Jupiter MOID = 2.42457 au 
 T_jup = 3.581 
[ 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 16.1   n/a MPO493239  
diameter diameter 2.070 km 0.552 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.150   0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

52746 (1998 HS149)          Discovered 1998-Apr-25 by Elst, E. W. at La Silla
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HS149 = 1991 GW12 = 2002 TX267 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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