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JPL Small-Body Database Browser
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66947 (1999 XZ1)
Classification: Main-belt Asteroid          SPK-ID: 2066947
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1681965407075102 4.0978e-08  
a 2.769418378361217 1.38e-08 au
q 2.303611787349057 1.1418e-07 au
i 9.086245842687603 4.7295e-06 deg
node 199.1539961245717 2.4041e-05 deg
peri 183.9662991840046 2.6713e-05 deg
M 191.052983467439 1.178e-05 deg
tp 2459790.504032105353
(2022-Jul-30.00403211)
5.6792e-05 TDB
period 1683.376583942899
4.61
1.2583e-05
3.445e-08
d
yr
n .2138558914469321 1.5985e-09 deg/d
Q 3.235224969373376 1.6121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1429  
   data-arc span      7416 days (20.30 yr)  
   first obs. used      1999-10-10  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52058  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 15:06:39  

Additional Information
 Earth MOID = 1.30699 au 
 Jupiter MOID = 2.22003 au 
 T_jup = 3.299 
[ 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 14.1   n/a MPO385243  
diameter diameter 4.645 km 0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.247   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66947 (1999 XZ1)          Discovered 1999-Dec-03 by Juels, C. W. at Fountain Hills
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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