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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07840222133497481 3.0366e-08  
a 2.698465636030863 8.8954e-09 au
q 2.486899935969948 8.4586e-08 au
i 1.661330177158387 3.3387e-06 deg
node 271.9071949794724 0.00012849 deg
peri 17.72114556997346 0.00013084 deg
M 320.600268640588 2.4732e-05 deg
tp 2459177.700329273043
(2020-Nov-24.20032927)
0.00011118 TDB
period 1619.100342496534
4.43
8.006e-06
2.192e-08
d
yr
n .2223457006036491 1.0994e-09 deg/d
Q 2.910031336091778 9.5928e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3039  
   data-arc span      30720 days (84.11 yr)  
   first obs. used      1936-06-24  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42976  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:41:53  

Additional Information
 Earth MOID = 1.47065 au 
 Jupiter MOID = 2.20469 au 
 T_jup = 3.364 
[ 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 12.0   n/a MPO384765  
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. 2019-August); 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

[ show close-approach data ]
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 | Close-Approach Data ]
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