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JPL Small-Body Database Browser
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148780 Altjira (2001 UQ18)
Classification: TransNeptunian Object          SPK-ID: 2148780
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06604166395518012 6.6078e-05  
a 44.01406287198898 0.0085616 au
q 41.10730092249492 0.010157 au
i 5.199345367849943 0.00026218 deg
node 1.828089822156326 0.0041119 deg
peri 296.3894510610432 0.13137 deg
M 129.4079542427089 0.14055 deg
tp 2420261.208143598415
(1914-May-08.70814360)
30.801 TDB
period 106656.0795978445
292.01
31.12
0.0852
d
yr
n .003375335014725928 9.8485e-07 deg/d
Q 46.92082482148305 0.009127 au
  Orbit Determination Parameters
   # obs. used (total)      73  
   data-arc span      6234 days (17.07 yr)  
   first obs. used      2001-10-20  
   last obs. used      2018-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .38757  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:41:23  

Additional Information
 Earth MOID = 40.0943 au 
 Jupiter MOID = 35.9795 au 
 T_jup = 5.898 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 5.7   n/a MPO157315  

148780 Altjira           Discovered 2001 Oct. 20 by the Deep Ecliptic Survey at Kitt Peak.
According to the mythology of the Arrernte in central Australia, Altjira was the central god of the Dreamtime who created the earth and then retired to the sky.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080819/MPCPages.arcLast Updated: 2008-08-25
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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