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JPL Small-Body Database Browser
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48979 (1998 QZ40)
Classification: Main-belt Asteroid          SPK-ID: 2048979
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .117437303765783 5.4974e-08  
a 2.312633592157386 8.5582e-09 au
q 2.041044138496245 1.2536e-07 au
i 4.501733916996029 6.054e-06 deg
node 316.36268349073 4.9846e-05 deg
peri 240.0116145864201 5.389e-05 deg
M 90.86593554411299 2.1313e-05 deg
tp 2458276.266956427925
(2018-Jun-06.76695643)
7.5883e-05 TDB
period 1284.572650762844
3.52
7.1306e-06
1.952e-08
d
yr
n .280248843680592 1.5556e-09 deg/d
Q 2.584223045818527 9.5632e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1307  
   data-arc span      10276 days (28.13 yr)  
   first obs. used      1991-09-12  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55308  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:39:35  

Additional Information
 Earth MOID = 1.04461 au 
 Jupiter MOID = 2.39326 au 
 T_jup = 3.570 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO250661  
diameter diameter 3.146 km 0.549 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.310   0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48979 (1998 QZ40)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QZ40 = 2000 AL18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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