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11711 Urquiza (1998 HV50)
Classification: Main-belt Asteroid          SPK-ID: 2011711
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1081831224965988 1.5948e-08  
a 2.368905365748546 6.9293e-09 au
q 2.112629786382921 3.9527e-08 au
i 2.902086150562061 1.2531e-06 deg
node 273.3874523321434 6.4328e-06 deg
peri 54.12183006500666 1.301e-05 deg
M 19.36779087981009 1.1972e-05 deg
tp 2459324.853070861637
(2021-Apr-20.35307086)
4.4189e-05 TDB
period 1331.741686487246
3.65
5.8432e-06
1.6e-08
d
yr
n .2703226936971366 1.1861e-09 deg/d
Q 2.625180945114172 7.679e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2282  
   data-arc span      14460 days (39.59 yr)  
   first obs. used      1981-11-24  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48198  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 16:37:36  

Additional Information
 Earth MOID = 1.10179 au 
 Jupiter MOID = 2.64767 au 
 T_jup = 3.536 
[ 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 14.19   n/a E2021B10  
diameter diameter 3.835 km 0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.302   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11711 Urquiza           Discovered 1998 Apr. 25 by LONEOS at the Anderson Mesa Station of the Lowell Observatory.
Luis Urquiza del Valle (1906-2000) was the much-loved grandfather of LONEOS observer L. Levy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010705/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1998 HV50 = 1981 WW5 = 1994 EN2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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