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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1903170033637378 2.9446e-08  
a 2.552709529994545 6.5541e-09 au
q 2.066885501787928 7.7896e-08 au
i 5.6722286752311 3.1604e-07 deg
node 198.0924474864201 7.0438e-06 deg
peri 342.9971358173769 8.8195e-06 deg
M 34.70645920784404 3.9422e-06 deg
tp 2459056.882178611520
(2020-Jul-26.38217861)
1.5997e-05 TDB
period 1489.705861097099
4.08
5.7372e-06
1.571e-08
d
yr
n .2416584437245059 9.3069e-10 deg/d
Q 3.038533558201163 7.8014e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3252  
   data-arc span      40508 days (110.90 yr)  
   first obs. used      1910-03-30  
   last obs. used      2021-02-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4371  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:39:32  

Additional Information
 Earth MOID = 1.0699 au 
 Jupiter MOID = 1.92667 au 
 T_jup = 3.407 
[ 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 12.40   n/a E2021B10  
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. 2020-October); 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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