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JPL Small-Body Database Browser
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49930 (1999 XZ176)
Classification: Main-belt Asteroid          SPK-ID: 2049930
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2119601381718167 4.7712e-08  
a 2.666584524217548 1.5385e-08 au
q 2.101374900017569 1.3376e-07 au
i 12.40455147626123 5.2363e-06 deg
node 71.65300235849925 1.8666e-05 deg
peri 260.5463050153215 2.2587e-05 deg
M 289.7826324412393 1.4223e-05 deg
tp 2458910.722648554040
(2020-Mar-02.22264855)
6.3817e-05 TDB
period 1590.491887722733
4.35
1.3765e-05
3.769e-08
d
yr
n .2263450714705928 1.9589e-09 deg/d
Q 3.231794148417528 1.8647e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1334  
   data-arc span      8146 days (22.30 yr)  
   first obs. used      1997-05-09  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4886  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:17:23  

Additional Information
 Earth MOID = 1.13239 au 
 Jupiter MOID = 2.24739 au 
 T_jup = 3.318 
[ 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 13.7   n/a MPO302341  
diameter diameter 10.569 km 0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49930 (1999 XZ176)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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