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21194 (1994 PN1)
Classification: Main-belt Asteroid          SPK-ID: 2021194
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1962831066238789 1.8378e-08  
a 2.790409123159902 1.4564e-08 au
q 2.242698951714463 5.3731e-08 au
i 24.70780439685343 3.6055e-07 deg
node 108.7113992445958 1.8783e-06 deg
peri 308.1487235476019 5.5502e-06 deg
M 224.4636674759696 9.0958e-06 deg
tp 2460037.493286244990
(2023-Apr-02.99328625)
4.6054e-05 TDB
period 1702.551476426318
4.66
1.3329e-05
3.649e-08
d
yr
n .2114473512164493 1.6554e-09 deg/d
Q 3.338119294605341 1.7423e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1870  
   data-arc span      9822 days (26.89 yr)  
   first obs. used      1994-08-09  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42189  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:31:19  

Additional Information
 Earth MOID = 1.32287 au 
 Jupiter MOID = 2.08597 au 
 T_jup = 3.169 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.13   n/a E2021B10  
diameter diameter 13.905 km 0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21194 (1994 PN1)          Discovered 1994-Aug-11 by McNaught, R. H. at Siding Spring
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 PN1 = 1998 MN28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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