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2158 Tietjen (1933 OS)
Classification: Main-belt Asteroid          SPK-ID: 2002158
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .181418607798123 2.982e-08  
a 3.067662582732253 1.2282e-08 au
q 2.511131507778573 9.0705e-08 au
i 1.585677949331478 3.489e-06 deg
node 187.2834751655865 0.00011498 deg
peri 101.4454387176511 0.00011535 deg
M 65.35887708271439 9.6917e-06 deg
tp 2458644.203224592349
(2019-Jun-09.70322459)
5.251e-05 TDB
period 1962.500655946512
5.37
1.1785e-05
3.227e-08
d
yr
n .1834394291330172 1.1016e-09 deg/d
Q 3.624193657685932 1.451e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3171  
   data-arc span      31892 days (87.32 yr)  
   first obs. used      1933-07-24  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45217  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:04:38  

Additional Information
 Earth MOID = 1.49542 au 
 Jupiter MOID = 1.55934 au 
 T_jup = 3.206 
[ 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 11.7   n/a MPO502174  
diameter diameter 22.658 km 0.259 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.066   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2158 Tietjen (1933 OS)          Discovered 1933-Jul-24 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1933 OS = 1928 SS = 1949 QR1 = 1955 RL1 = 1959 GX = 1961 VV = 1976 OG1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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