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48994 (1998 QL50)
Classification: Main-belt Asteroid          SPK-ID: 2048994
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1145838314220012 3.8219e-08  
a 2.317800174864886 8.3026e-09 au
q 2.052217750358283 9.0626e-08 au
i 3.335607206082867 4.0135e-06 deg
node 59.86569725376792 8.0538e-05 deg
peri 334.091466961509 8.3118e-05 deg
M 16.66502504124488 2.0115e-05 deg
tp 2458940.835516744626
(2020-Apr-01.33551674)
7.1976e-05 TDB
period 1288.879789785788
3.53
6.9254e-06
1.896e-08
d
yr
n .2793123166744915 1.5008e-09 deg/d
Q 2.583382599371489 9.254e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1029  
   data-arc span      8583 days (23.50 yr)  
   first obs. used      1997-05-01  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5637  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:34:48  

Additional Information
 Earth MOID = 1.05923 au 
 Jupiter MOID = 2.80496 au 
 T_jup = 3.569 
[ 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 15.5   n/a MPO502482  
diameter diameter 2.000 km 0.448 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.335   0.125 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48994 (1998 QL50)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QL50 = 1997 JL1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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