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91017 (1998 DA16)
Classification: Main-belt Asteroid          SPK-ID: 2091017
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1846063070725615 3.5323e-08  
a 2.563185666614698 1.2791e-08 au
q 2.090005426359637 9.1833e-08 au
i 10.88570718535019 4.2902e-06 deg
node 185.23297954 2.5937e-05 deg
peri 294.5040065471939 2.9473e-05 deg
M 176.1094027102579 1.5514e-05 deg
tp 2458267.255913788745
(2018-May-28.75591379)
6.3008e-05 TDB
period 1498.885732241918
4.10
1.122e-05
3.072e-08
d
yr
n .2401784153762941 1.7979e-09 deg/d
Q 3.036365906869759 1.5153e-08 au
  Orbit Determination Parameters
   # obs. used (total)      814  
   data-arc span      8164 days (22.35 yr)  
   first obs. used      1998-01-24  
   last obs. used      2020-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56285  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:37:01  

Additional Information
 Earth MOID = 1.13169 au 
 Jupiter MOID = 2.12403 au 
 T_jup = 3.385 
[ 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 MPO337937  
diameter diameter 4.969 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91017 (1998 DA16)          Discovered 1998-Feb-25 by NEAT at Haleakala
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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