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1858 Lobachevskij (1972 QL)
Classification: Main-belt Asteroid          SPK-ID: 2001858
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07894310539099164 1.8214e-08  
a 2.699373891227587 8.8248e-09 au
q 2.486276933642716 5.1984e-08 au
i 1.659265354492766 3.3737e-07 deg
node 271.8500293756753 2.7512e-05 deg
peri 17.04794306031847 3.2154e-05 deg
M 49.24551268950424 9.4917e-06 deg
tp 2459174.906430239492
(2020-Nov-21.40643024)
4.2964e-05 TDB
period 1619.917851536249
4.44
7.9438e-06
2.175e-08
d
yr
n .2222334914443928 1.0898e-09 deg/d
Q 2.912470848812458 9.5215e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3221  
   data-arc span      31059 days (85.03 yr)  
   first obs. used      1936-06-24  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4261  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:28:18  

Additional Information
 Earth MOID = 1.46966 au 
 Jupiter MOID = 2.19847 au 
 T_jup = 3.363 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.06   n/a E2021B10  
diameter diameter 10.769 km 0.189 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.413 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Ditteon, R.; Horn, L.; Kamperman, A.; Vorjohan, B.; Kirkpatrick, E. (2012) Minor Planet Bull. 39, 26-28.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
geometric albedo albedo 0.383   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B L   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)

1858 Lobachevskij (1972 QL)          Discovered 1972-Aug-18 by Zhuravleva, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1972 QL = 1928 SG = 1936 MH = 1955 VW = 1957 BM = 1964 YC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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