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2446 Lunacharsky (1971 TS2)
Classification: Main-belt Asteroid          SPK-ID: 2002446
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1613309899438308 2.9685e-08  
a 2.354368247060434 7.8031e-09 au
q 1.974535687069852 6.9951e-08 au
i 3.311031460790149 3.5607e-06 deg
node 22.06493921440579 6.0314e-05 deg
peri 251.6306938928676 6.1482e-05 deg
M 298.9617055121888 1.3425e-05 deg
tp 2459424.222623835200
(2021-Jul-28.72262384)
4.9575e-05 TDB
period 1319.501884128746
3.61
6.5599e-06
1.796e-08
d
yr
n .2728302280808824 1.3564e-09 deg/d
Q 2.734200807051015 9.062e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2814  
   data-arc span      24549 days (67.21 yr)  
   first obs. used      1953-10-31  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43444  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:03:06  

Additional Information
 Earth MOID = .959549 au 
 Jupiter MOID = 2.37618 au 
 T_jup = 3.536 
[ 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 13.17   n/a E2021B10  
diameter diameter 12.954 km 0.120 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.613 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Florczak, M.; Dotto, E.; Barucci, M.A.; Birlan, M.; et al. (1997) Planet. Space Sci. 45, 1423-1435.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.079   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B B   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2446 Lunacharsky (1971 TS2)          Discovered 1971-Oct-14 by Chernykh, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1971 TS2 = 1960 RB = 1970 FB = 1973 AU3 = 1975 XN1 = 1977 DE3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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