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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1144921182649836 4.0165e-08  
a 2.318239715673442 8.7184e-09 au
q 2.052819539979977 9.5536e-08 au
i 3.335820672595578 4.1028e-06 deg
node 59.87027708010469 8.2175e-05 deg
peri 333.9291686613863 8.4711e-05 deg
M 265.0862006855368 2.0203e-05 deg
tp 2458940.409104207893
(2020-Mar-31.90910421)
7.2609e-05 TDB
period 1289.246436226
3.53
7.2729e-06
1.991e-08
d
yr
n .2792328835546949 1.5752e-09 deg/d
Q 2.583659891366908 9.7166e-09 au
  Orbit Determination Parameters
   # obs. used (total)      993  
   data-arc span      8214 days (22.49 yr)  
   first obs. used      1997-05-01  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57024  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:39:35  

Additional Information
 Earth MOID = 1.05915 au 
 Jupiter MOID = 2.80538 au 
 T_jup = 3.568 
[ 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 MPO432048  
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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