Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
11711 Urquiza (1998 HV50)
Classification: Main-belt Asteroid          SPK-ID: 2011711
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1082115848828627 4.3597e-08  
a 2.368326549734544 7.5974e-09 au
q 2.112046180267607 1.0365e-07 au
i 2.903643365337532 3.8592e-06 deg
node 273.4088186310283 8.2556e-05 deg
peri 54.47167565834809 8.3891e-05 deg
M 271.9896760797245 1.5375e-05 deg
tp 2459325.955729051545
(2021-Apr-21.45572905)
5.7129e-05 TDB
period 1331.253621617047
3.64
6.4058e-06
1.754e-08
d
yr
n .2704217995386298 1.3012e-09 deg/d
Q 2.624606919201481 8.4195e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1933  
   data-arc span      13950 days (38.19 yr)  
   first obs. used      1981-11-24  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50051  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:07:49  

Additional Information
 Earth MOID = 1.10201 au 
 Jupiter MOID = 2.65152 au 
 T_jup = 3.537 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456480.5 (2013-Jul-07.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1082686094257473 4.3709e-08  
q 2.112384008143106 1.0392e-07 au
tp 2456660.204615196436
(2014-Jan-02.70461520)
5.596e-05 TDB
node 273.5541723721915 8.2425e-05 deg
peri 53.68229013605777 8.3755e-05 deg
i 2.905723721836512 3.8635e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1933  
   data-arc span      13950 days (38.19 yr)  
   first obs. used      1981-11-24  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50051  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:07:49  

Additional Information
 Jupiter MOID = 2.65152 au 
 T_jup = 3.537 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.910433003802461E-15 -4.53255532022065E-15 -2.893173623330891E-14 1.145820371108024E-14 -4.858747448098158E-14 -4.270550258149709E-16
q -4.53255532022065E-15 1.080000324162926E-14 5.878353188007637E-14 -2.636425917738519E-14 1.097062324239835E-13 1.112768565886889E-15
tp -2.893173623330891E-14 5.878353188007637E-14 3.131476299812712E-9 -2.430180796094031E-12 8.507200221305691E-10 4.466148432787095E-13
node 1.145820371108024E-14 -2.636425917738519E-14 -2.430180796094031E-12 6.793835937141814E-9 -6.785407901193852E-9 1.052153276715622E-10
peri -4.858747448098158E-14 1.097062324239835E-13 8.507200221305691E-10 -6.785407901193852E-9 7.01495369735575E-9 -1.049638173201506E-10
i -4.270550258149709E-16 1.112768565886889E-15 4.466148432787095E-13 1.052153276715622E-10 -1.049638173201506E-10 1.492685147471654E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1   n/a MPO337357  
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

[ show close-approach data ]
Alternate Designations
 1998 HV50 = 1981 WW5 = 1994 EN2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-05 14:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin