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1008 La Paz (A923 UD)
Classification: Main-belt Asteroid          SPK-ID: 2001008
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07459135124458871 3.3985e-08  
a 3.097593658327374 1.414e-08 au
q 2.866539961746066 1.0678e-07 au
i 8.921980768980855 3.7948e-06 deg
node 20.2680123699284 2.4662e-05 deg
peri 14.5636869767391 3.5973e-05 deg
M 288.6752942379372 2.7443e-05 deg
tp 2459595.023234091422
(2022-Jan-15.52323409)
0.00015291 TDB
period 1991.292676996307
5.45
1.3635e-05
3.733e-08
d
yr
n .1807870857753712 1.2379e-09 deg/d
Q 3.328647354908682 1.5195e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2856  
   data-arc span      35472 days (97.12 yr)  
   first obs. used      1923-10-31  
   last obs. used      2020-12-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40194  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:51:42  

Additional Information
 Earth MOID = 1.87221 au 
 Jupiter MOID = 2.0567 au 
 T_jup = 3.200 
[ show covariance matrix ]

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 10.67   n/a E2021B10  
diameter diameter 41.061 km 0.240 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.998 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.027   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

1008 La Paz (A923 UD)          Discovered 1923-Oct-31 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A923 UD = 1950 UN = 1970 JA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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