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5471 Tunguska (1988 PK1)
Classification: Main-belt Asteroid          SPK-ID: 2005471
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07282209406493331 3.4683e-08  
a 2.99565622390493 1.719e-08 au
q 2.777506264581523 1.0374e-07 au
i 9.322604016059005 3.4699e-06 deg
node 250.2622066634003 2.4902e-05 deg
peri 28.40313271725612 3.6356e-05 deg
M 90.74957028171332 2.6154e-05 deg
tp 2458523.104343985549
(2019-Feb-08.60434399)
0.00013793 TDB
period 1893.809917024299
5.18
1.6301e-05
4.463e-08
d
yr
n .1900929954816479 1.6362e-09 deg/d
Q 3.213806183228338 1.8442e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2413  
   data-arc span      31800 days (87.06 yr)  
   first obs. used      1932-12-23  
   last obs. used      2020-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43582  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:38:49  

Additional Information
 Earth MOID = 1.76521 au 
 Jupiter MOID = 1.87516 au 
 T_jup = 3.230 
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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 11.5   n/a MPO435750  
diameter diameter 15.954 km 2.611 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.17 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:
[Warell, J. (2017) Minor Planet Bull. 44, 304-305.]
geometric albedo albedo 0.191   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

5471 Tunguska (1988 PK1)          Discovered 1988-Aug-13 by Elst, E. W. at Haute Provence
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1988 PK1 = 1932 YN = 1976 FE = 1991 BC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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