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2111 Tselina (1969 LG)
Classification: Main-belt Asteroid          SPK-ID: 2002111
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09542092199318082 3.707e-08  
a 3.015595694333764 1.4004e-08 au
q 2.727844772821769 1.1025e-07 au
i 10.50527394204343 4.4112e-06 deg
node 167.1554039394041 1.9123e-05 deg
peri 232.0793142082643 2.8074e-05 deg
M 146.5497533820031 2.1523e-05 deg
tp 2458221.852865181497
(2018-Apr-13.35286518)		 0.00011283 TDB
period 1912.749507015441
5.24		 1.3324e-05
3.648e-08		 d
yr
n .1882107399215729 1.3111e-09 deg/d
Q 3.303346615845757 1.5341e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2977  
   data-arc span      19096 days (52.28 yr)  
   first obs. used      1968-04-26  
   last obs. used      2020-08-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4375  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:12:32  

Additional Information
 Earth MOID = 1.74848 au 
 Jupiter MOID = 2.14068 au 
 T_jup = 3.216 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456632.5 (2013-Dec-06.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09432494488331085 3.6921e-08  
q 2.735598471643081 1.099e-07 au
tp 2456316.371900553356
(2013-Jan-23.87190055)		 0.00011217 TDB
node 167.2178855909045 1.9157e-05 deg
peri 233.8224348498689 2.8344e-05 deg
i 10.48970290325726 4.4057e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2977  
   data-arc span      19096 days (52.28 yr)  
   first obs. used      1968-04-26  
   last obs. used      2020-08-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4375  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:12:32  

Additional Information
 Jupiter MOID = 2.14068 au 
 T_jup = 3.216 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.363179399452436E-15 -4.031402555997338E-15 -8.470949140727065E-13 -1.070477525008263E-15 -1.772266917392216E-13 -2.733766204436666E-16
q -4.031402555997338E-15 1.207709826105472E-14 2.693265695459084E-12 4.514209631884841E-16 5.635050117716324E-13 2.544583168486857E-16
tp -8.470949140727065E-13 2.693265695459084E-12 1.258146073824714E-8 -3.264662797127475E-12 2.356543621970976E-9 -4.079853576428279E-13
node -1.070477525008263E-15 4.514209631884841E-16 -3.264662797127475E-12 3.66987504528614E-10 -3.610848541947875E-10 1.11373403825827E-11
peri -1.772266917392216E-13 5.635050117716324E-13 2.356543621970976E-9 -3.610848541947875E-10 8.03404691417941E-10 -1.104406249929386E-11
i -2.733766204436666E-16 2.544583168486857E-16 -4.079853576428279E-13 1.11373403825827E-11 -1.104406249929386E-11 1.941003388374388E-11

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.6   n/a MPO502173  
diameter diameter 22.773 km 0.247 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.563 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
geometric albedo albedo 0.226   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.799   0.026 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=18.05 deg.
U-B UB 0.463   0.044 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=18.05 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

2111 Tselina           Discovered 1969 June 13 by T. M. Smirnova at the Crimean Astrophysical Observatory.
Named on the 25th anniversary of the development of tselina (virgin soil) and long fallow lands in the U.S.S.R.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5283Last Updated: 2007-10-23

Alternate Designations
 1969 LG = 1928 RS = 1928 SO = 1951 AR1 = 1968 HB1 = 1975 RE = 1976 YF 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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