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49233 (1998 SE145)
Classification: Main-belt Asteroid          SPK-ID: 2049233
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1411267763576992 5.2971e-08  
a 2.548209214077483 1.1873e-08 au
q 2.188588662209742 1.3803e-07 au
i 4.045849628232351 6.2725e-06 deg
node 178.9728094700342 4.3093e-05 deg
peri 142.2811603085271 4.7347e-05 deg
M 68.70928774577716 1.6892e-05 deg
tp 2458316.927576195110
(2018-Jul-17.42757619)
6.9957e-05 TDB
period 1485.768167870935
4.07
1.0384e-05
2.843e-08
d
yr
n .2422989048929955 1.6935e-09 deg/d
Q 2.907829765945225 1.3549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      996  
   data-arc span      7330 days (20.07 yr)  
   first obs. used      1998-09-20  
   last obs. used      2018-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55922  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-30 18:35:15  

Additional Information
 Earth MOID = 1.17689 au 
 Jupiter MOID = 2.39521 au 
 T_jup = 3.424 
[ 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 15.4   n/a MPO449316  
diameter diameter 1.847 km 0.186 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.393   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49233 (1998 SE145)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SE145 = 1998 UQ38 = 2001 HZ51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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