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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1814186098841174 3.0183e-08  
a 3.067662581939565 1.2407e-08 au
q 2.511131500730567 9.2064e-08 au
i 1.585678236848904 3.5266e-06 deg
node 187.2834638048526 0.00011677 deg
peri 101.4454506237738 0.00011715 deg
M 65.35887682202619 9.7087e-06 deg
tp 2458644.203226151563
(2019-Jun-09.70322615)
5.2622e-05 TDB
period 1962.500655185844
5.37
1.1906e-05
3.26e-08
d
yr
n .1834394292041186 1.1129e-09 deg/d
Q 3.624193663148564 1.4658e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3116  
   data-arc span      31870 days (87.26 yr)  
   first obs. used      1933-07-24  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45557  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:12:06  

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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