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18445 (1994 PC12)
Classification: Main-belt Asteroid          SPK-ID: 2018445
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1145716266176075 3.8789e-08  
a 3.119180245041123 2.2856e-08 au
q 2.761810690653254 1.2866e-07 au
i 12.92125354779387 4.9278e-06 deg
node 320.0543361170587 1.9239e-05 deg
peri 292.8260928651242 3.0812e-05 deg
M 348.808138566873 2.4616e-05 deg
tp 2459263.054557750783
(2021-Feb-17.55455775)
0.00013759 TDB
period 2012.144353719888
5.51
2.2116e-05
6.055e-08
d
yr
n .1789136049481049 1.9665e-09 deg/d
Q 3.476549799428993 2.5475e-08 au
  Orbit Determination Parameters
   # obs. used (total)      847  
   data-arc span      9420 days (25.79 yr)  
   first obs. used      1994-08-10  
   last obs. used      2020-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53615  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:29:25  

Additional Information
 Earth MOID = 1.77712 au 
 Jupiter MOID = 1.83644 au 
 T_jup = 3.168 
[ 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 14.2   n/a MPO290607  
diameter diameter 7.930 km 0.280 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18445 (1994 PC12)          Discovered 1994-Aug-10 by Elst, E. W. at La Silla
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 PC12 = 1994 PK30 = 1998 FN102 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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