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JPL Small-Body Database Browser
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18244 Anneila (3008 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2018244
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1070293600571997 4.039e-08  
a 2.728058525159576 1.4821e-08 au
q 2.436076167013158 1.1116e-07 au
i 9.091673229733148 4.8988e-06 deg
node 176.452519373707 2.3366e-05 deg
peri 145.3552139640383 3.1825e-05 deg
M 74.54637807770015 2.1869e-05 deg
tp 2458259.697322409525
(2018-May-21.19732241)
0.00010008 TDB
period 1645.807175295513
4.51
1.3412e-05
3.672e-08
d
yr
n .2187376537201936 1.7825e-09 deg/d
Q 3.020040883305994 1.6407e-08 au
  Orbit Determination Parameters
   # obs. used (total)      932  
   data-arc span      16878 days (46.21 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-12-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .525  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:26:37  

Additional Information
 Earth MOID = 1.42965 au 
 Jupiter MOID = 2.32333 au 
 T_jup = 3.329 
[ 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 15.0   n/a MPO467906  

18244 Anneila           Discovered 1973 Sept. 30 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Anneila Sargent (b. 1942), professor at the California Institute for Technology and director of the Owens Valley Radio Observatory, is known for her ground-breaking observations of protoplanetary disks around young stars using emerging millimeter interferometers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050919/MPCPages.arcLast Updated: 2005-09-26

[ show close-approach data ]
Alternate Designations
 3008 T-2 = 1999 JB129 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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