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14988 Tryggvason (1997 UA7)
Classification: Main-belt Asteroid          SPK-ID: 2014988
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3433821039567305 6.4302e-08  
a 3.009446956085922 1.0536e-08 au
q 1.97605672855896 1.9124e-07 au
i 8.424869898253952 4.8576e-06 deg
node 52.1348393357356 3.0675e-05 deg
peri 319.2205679712196 3.1e-05 deg
M 162.7660379463355 6.2443e-06 deg
tp 2458338.336252592611
(2018-Aug-07.83625259)
3.0981e-05 TDB
period 1906.902404105904
5.22
1.0014e-05
2.742e-08
d
yr
n .1887878473616978 9.9139e-10 deg/d
Q 4.042837183612884 1.4154e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1448  
   data-arc span      33413 days (91.48 yr)  
   first obs. used      1929-09-29  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51697  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 01:55:40  

Additional Information
 Earth MOID = .984344 au 
 Jupiter MOID = 1.45854 au 
 T_jup = 3.142 
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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 13.56   n/a MPCxxxxx  
diameter diameter 13.665 km 0.387 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14988 Tryggvason           Discovered 1997 Oct. 25 by Spacewatch at Kitt Peak.
Bjarni Tryggvason (b. 1945), born in Iceland and raised in Canada, flew on space shuttle mission STS-85. His expertise relates to stable microgravity platforms.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030614/MPCPages.arcLast Updated: 2005-04-26

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Alternate Designations
 1997 UA7 = 1929 SE = 1971 UB3 = 1999 CA59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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