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3861 Lorenz (A910 FA)
Classification: Main-belt Asteroid          SPK-ID: 2003861
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1904494450894854 4.4613e-08  
a 2.553086867519092 7.556e-09 au
q 2.066852890334828 1.1731e-07 au
i 5.671927442422678 3.5763e-06 deg
node 198.0937416617325 3.2867e-05 deg
peri 342.9886501800581 3.385e-05 deg
M 346.3822501462159 1.0009e-05 deg
tp 2459056.863722231751
(2020-Jul-26.36372223)
4.1572e-05 TDB
period 1490.036182283945
4.08
6.6147e-06
1.811e-08
d
yr
n .241604871264393 1.0726e-09 deg/d
Q 3.039320844703355 8.995e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3212  
   data-arc span      40253 days (110.21 yr)  
   first obs. used      1910-03-30  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43872  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:02:18  

Additional Information
 Earth MOID = 1.07037 au 
 Jupiter MOID = 1.92694 au 
 T_jup = 3.407 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456606.5 (2013-Nov-10.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1907499291225953 4.4601e-08  
q 2.066213496576206 1.173e-07 au
tp 2456077.517339634276
(2012-May-30.01733963)
3.566e-05 TDB
node 198.1230953184854 3.2888e-05 deg
peri 343.1027764703308 3.3874e-05 deg
i 5.669705923977584 3.5759e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3212  
   data-arc span      40253 days (110.21 yr)  
   first obs. used      1910-03-30  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43872  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:02:18  

Additional Information
 Jupiter MOID = 1.92694 au 
 T_jup = 3.407 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.989270778227102E-15 -5.226710958396604E-15 -6.702914532954528E-13 -8.262539789382361E-15 -9.604066659027173E-14 -2.472416461432242E-15
q -5.226710958396604E-15 1.375916541892724E-14 1.778142246593051E-12 2.324454970124281E-14 2.562288756824598E-13 6.572016425531587E-15
tp -6.702914532954528E-13 1.778142246593051E-12 1.271631553207138E-9 5.855949074020235E-13 2.969415487660237E-10 1.851375499562466E-12
node -8.262539789382361E-15 2.324454970124281E-14 5.855949074020235E-13 1.08160610289923E-9 -1.075941859695263E-9 -2.761448488570443E-11
peri -9.604066659027173E-14 2.562288756824598E-13 2.969415487660237E-10 -1.075941859695263E-9 1.147426601547561E-9 2.787879623425847E-11
i -2.472416461432242E-15 6.572016425531587E-15 1.851375499562466E-12 -2.761448488570443E-11 2.787879623425847E-11 1.2786871429676E-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 12.3   n/a MPO267723  
diameter diameter 8.175 km 0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 11.91 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Ferrero, A. (2016) Minor Planet Bull. 43, 320-321.]
geometric albedo albedo 0.290   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B S   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)

3861 Lorenz (A910 FA)          Discovered 1910-Mar-30 by Helffrich, J. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A910 FA = 1951 GM = 1963 DK = 1971 CD = 1981 SP4 = 1986 WL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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