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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456856.5 (2014-Jul-18.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1824238467426385 2.9576e-08  
q 2.508824203567874 9.0093e-08 au
tp 2456685.727783852195
(2014-Jan-28.22778385)		 5.2505e-05 TDB
node 187.3141472592835 0.00011493 deg
peri 102.2361191293117 0.0001153 deg
i 1.585178046553121 3.4918e-06 deg
   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
 Jupiter MOID = 1.55934 au 
 T_jup = 3.206 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.7471807643944E-16 -2.647933599828805E-15 1.610191955422533E-13 -2.76674883415636E-15 1.096191653622714E-14 -3.173368349569333E-17
q -2.647933599828805E-15 8.11682416263354E-15 -5.601557595061991E-13 9.078336328392826E-15 -4.534315802824096E-14 1.411733170065392E-16
tp 1.610191955422533E-13 -5.601557595061991E-13 2.756780467646202E-9 -3.559392232214925E-12 5.013881191402823E-10 -2.741241779772157E-13
node -2.76674883415636E-15 9.078336328392826E-15 -3.559392232214925E-12 1.320834806972934E-8 -1.320357242761057E-8 4.761878640536174E-12
peri 1.096191653622714E-14 -4.534315802824096E-14 5.013881191402823E-10 -1.320357242761057E-8 1.329507582042843E-8 -4.805652387187667E-12
i -3.173368349569333E-17 1.411733170065392E-16 -2.741241779772157E-13 4.761878640536174E-12 -4.805652387187667E-12 1.219235774255128E-11

[ 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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