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48957 (1998 QT24)
Classification: Main-belt Asteroid          SPK-ID: 2048957
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07727487107613297 4.444e-08  
a 2.249911641961859 8.779e-09 au
q 2.076050009896566 1.0007e-07 au
i 5.069935995007185 4.6224e-06 deg
node 307.5741249188319 4.4023e-05 deg
peri 230.924867887705 5.168e-05 deg
M 196.705196136157 2.8232e-05 deg
tp 2459159.634752088564
(2020-Nov-06.13475209)
9.7031e-05 TDB
period 1232.66941745262
3.37
7.2147e-06
1.975e-08
d
yr
n .2920491048962341 1.7093e-09 deg/d
Q 2.423773274027153 9.4574e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1232  
   data-arc span      7782 days (21.31 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54548  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:16:14  

Additional Information
 Earth MOID = 1.08489 au 
 Jupiter MOID = 2.55768 au 
 T_jup = 3.619 
[ 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 15.2   n/a MPO417155  
diameter diameter 2.028 km 0.475 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.429   0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48957 (1998 QT24)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QT24 = 1999 XV177 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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