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3945 Gerasimenko (1982 PL)
Classification: Main-belt Asteroid          SPK-ID: 2003945
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .270518922702355 4.1591e-08  
a 3.119836572982325 1.5596e-08 au
q 2.275861744251739 1.3466e-07 au
i 1.833338262251571 4.2639e-06 deg
node 9.406321917402497 0.00011173 deg
peri 332.8167132262851 0.00011187 deg
M 337.5189526196318 7.6324e-06 deg
tp 2459326.192751791446
(2021-Apr-21.69275179)
4.326e-05 TDB
period 2012.779470605765
5.51
1.5092e-05
4.132e-08
d
yr
n .1788571501534913 1.3411e-09 deg/d
Q 3.96381140171291 1.9815e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2453  
   data-arc span      24179 days (66.20 yr)  
   first obs. used      1954-07-31  
   last obs. used      2020-10-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48278  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:45:13  

Additional Information
 Earth MOID = 1.26625 au 
 Jupiter MOID = 1.4523 au 
 T_jup = 3.158 
[ 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 12.54   n/a E2021B10  
diameter diameter 20.796 km 0.203 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 272.332 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.062   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3945 Gerasimenko (1982 PL)          Discovered 1982-Aug-14 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1982 PL = 1971 TD2 = 1980 FM1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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