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56044 (1998 XU17)
Classification: Main-belt Asteroid          SPK-ID: 2056044
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 .1715982559870697 3.6944e-08  
a 2.40349209133017 7.7343e-09 au
q 1.991057040179198 8.9578e-08 au
i 3.144429345415726 4.116e-06 deg
node 139.8609563976326 7.7128e-05 deg
peri 270.6838116139262 7.8159e-05 deg
M 312.8087424975398 1.1633e-05 deg
tp 2459178.910956821293
(2020-Nov-25.41095682)
4.4042e-05 TDB
period 1361.013625295262
3.73
6.5695e-06
1.799e-08
d
yr
n .2645087406247683 1.2768e-09 deg/d
Q 2.815927142481143 9.0615e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1059  
   data-arc span      9425 days (25.80 yr)  
   first obs. used      1995-01-07  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52907  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:01:10  

Additional Information
 Earth MOID = 1.00457 au 
 Jupiter MOID = 2.55263 au 
 T_jup = 3.502 
[ 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 15.5   n/a MPO337703  
diameter diameter 2.020 km 0.533 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.273   0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56044 (1998 XU17)          Discovered 1998-Dec-15 by Zoltowski, F. B. at Woomera
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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