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48540 (1993 TW8)
Classification: Main-belt Asteroid          SPK-ID: 2048540
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .254761027572028 6.8321e-08  
a 2.663811705286865 8.3358e-09 au
q 1.985176297989587 1.8284e-07 au
i 14.50272665756959 6.8461e-06 deg
node 17.74153606691281 1.3599e-05 deg
peri 355.8716709860114 1.5699e-05 deg
M 324.1352121889116 6.0501e-06 deg
tp 2458758.704734517087
(2019-Oct-02.20473452)
2.6684e-05 TDB
period 1588.011749188232
4.35
7.4539e-06
2.041e-08
d
yr
n .2266985746069113 1.0641e-09 deg/d
Q 3.342447112584143 1.0459e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1288  
   data-arc span      16235 days (44.45 yr)  
   first obs. used      1975-05-20  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49446  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:37:29  

Additional Information
 Earth MOID = .985745 au 
 Jupiter MOID = 2.11737 au 
 T_jup = 3.293 
[ 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 13.8   n/a MPO449311  
diameter diameter 6.017 km 0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.147   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

48540 (1993 TW8)          Discovered 1993-Oct-11 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 TW8 = 1999 CG122 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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