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JPL Small-Body Database Browser
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2367 Praha (1981 AK1)
Classification: Main-belt Asteroid          SPK-ID: 2002367
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1000396752235799 4.0017e-08  
a 2.206139222173018 6.2202e-09 au
q 1.985437770888829 8.7923e-08 au
i 1.877024196121214 3.7608e-06 deg
node 190.849710200642 0.00012084 deg
peri 297.9673722018289 0.00012196 deg
M 230.4874611924124 1.7225e-05 deg
tp 2459031.083235419276
(2020-Jun-30.58323542)
5.7953e-05 TDB
period 1196.872257914984
3.28
5.0618e-06
1.386e-08
d
yr
n .3007839789244839 1.2721e-09 deg/d
Q 2.426840673457209 6.8424e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2119  
   data-arc span      28283 days (77.43 yr)  
   first obs. used      1942-03-12  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47791  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:24:18  

Additional Information
 Earth MOID = 1.0015 au 
 Jupiter MOID = 2.60603 au 
 T_jup = 3.654 
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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 13.1   n/a MPO302075  
diameter diameter 4.962 km 0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.377   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2367 Praha (1981 AK1)          Discovered 1981-Jan-08 by Mrkos, A. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1981 AK1 = 1942 EF = 1945 AB = 1952 HO = 1952 JM = 1960 VF = 1968 DG = 1970 YC = 1976 SE7 = 1978 CG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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