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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07840222118564917 3.0351e-08  
a 2.698465635907801 8.873e-09 au
q 2.486899936259484 8.4561e-08 au
i 1.661330186813019 3.3385e-06 deg
node 271.9071952575465 0.00012709 deg
peri 17.72114463205221 0.00012944 deg
M 320.6002694010443 2.4535e-05 deg
tp 2459177.700325840768
(2020-Nov-24.20032584)
0.00011029 TDB
period 1619.100342385777
4.43
7.9858e-06
2.186e-08
d
yr
n .222345700618859 1.0967e-09 deg/d
Q 2.910031335556118 9.5686e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3123  
   data-arc span      30788 days (84.29 yr)  
   first obs. used      1936-06-24  
   last obs. used      2020-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42468  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:14:48  

Additional Information
 Earth MOID = 1.47065 au 
 Jupiter MOID = 2.20469 au 
 T_jup = 3.364 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456714.5 (2014-Feb-26.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07676438753431744 3.0372e-08  
q 2.493940863657464 8.4298e-08 au
tp 2455931.332113768577
(2012-Jan-04.83211377)
0.00011462 TDB
node 272.0257266567969 0.00012677 deg
peri 16.26899205613133 0.00012924 deg
i 1.663198208294552 3.3412e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3123  
   data-arc span      30788 days (84.29 yr)  
   first obs. used      1936-06-24  
   last obs. used      2020-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42468  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:14:48  

Additional Information
 Jupiter MOID = 2.20469 au 
 T_jup = 3.364 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.224831454036652E-16 -2.548921181164492E-15 -1.245320174815446E-13 -2.113030248336495E-15 -1.552758180783932E-14 3.586152399816467E-18
q -2.548921181164492E-15 7.106087497547371E-15 1.846926675680229E-13 6.308243206805977E-15 1.349860862878227E-14 -2.693390136369015E-17
tp -1.245320174815446E-13 1.846926675680229E-13 1.313887293108522E-8 1.985499468924636E-12 2.897547966153361E-9 2.915467169672698E-13
node -2.113030248336495E-15 6.308243206805977E-15 1.985499468924636E-12 1.607139515122459E-8 -1.606407022749227E-8 -5.443769827703386E-11
peri -1.552758180783932E-14 1.349860862878227E-14 2.897547966153361E-9 -1.606407022749227E-8 1.670364464855697E-8 5.447711500842435E-11
i 3.586152399816467E-18 -2.693390136369015E-17 2.915467169672698E-13 -5.443769827703386E-11 5.447711500842435E-11 1.116329625206555E-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 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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