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79548 (1998 QD44)
Classification: Main-belt Asteroid          SPK-ID: 2079548
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1651183138704189 4.934e-08  
a 2.264490456573029 7.0306e-09 au
q 1.890581610608035 1.1266e-07 au
i 4.033296408646416 4.8929e-06 deg
node 2.597809461057619 5.1876e-05 deg
peri 342.0639268674973 5.2928e-05 deg
M 134.6492449346178 1.0643e-05 deg
tp 2458534.961513214195
(2019-Feb-20.46151321)
3.6062e-05 TDB
period 1244.669848124799
3.41
5.7966e-06
1.587e-08
d
yr
n .2892333260441478 1.347e-09 deg/d
Q 2.638399302538022 8.1915e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1266  
   data-arc span      8369 days (22.91 yr)  
   first obs. used      1997-03-04  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53739  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:43:01  

Additional Information
 Earth MOID = .883712 au 
 Jupiter MOID = 2.76126 au 
 T_jup = 3.596 
[ 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 15.3   n/a MPO432344  
diameter diameter 4.415 km 0.264 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79548 (1998 QD44)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1998 QD44 = 1997 GB31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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