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18451 (1994 PZ27)
Classification: Main-belt Asteroid          SPK-ID: 2018451
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1301432729757426 3.6295e-08  
a 3.043641804093159 1.6628e-08 au
q 2.647532297942681 1.063e-07 au
i 2.999063660045458 3.8618e-06 deg
node 126.2376080416145 7.6709e-05 deg
peri 356.5140323612529 7.8432e-05 deg
M 208.2733921991035 1.7773e-05 deg
tp 2460017.925130038237
(2023-Mar-14.42513004)
9.8685e-05 TDB
period 1939.495327015586
5.31
1.5894e-05
4.352e-08
d
yr
n .185615296404943 1.5211e-09 deg/d
Q 3.439751310243636 1.8792e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1406  
   data-arc span      9583 days (26.24 yr)  
   first obs. used      1994-08-10  
   last obs. used      2020-11-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52643  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:29:32  

Additional Information
 Earth MOID = 1.66316 au 
 Jupiter MOID = 1.62753 au 
 T_jup = 3.224 
[ 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 13.98   n/a E2021B10  
diameter diameter 8.304 km 0.423 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18451 (1994 PZ27)          Discovered 1994-Aug-12 by Elst, E. W. at La Silla
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 PZ27 = 1995 UC1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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