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15147 Siegfried (2000 EJ134)
Classification: Outer Main-belt Asteroid          SPK-ID: 2015147
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .006556107029274917 4.2998e-08  
a 3.244032354361578 2.1165e-08 au
q 3.222764131039952 1.4452e-07 au
i 8.940475820723854 4.1712e-06 deg
node 57.92349578173655 2.7757e-05 deg
peri 304.9041185594024 0.00029989 deg
M 348.8983501327085 0.0002983 deg
tp 2459066.312928728291
(2020-Aug-04.81292873)
0.0017683 TDB
period 2134.156150248427
5.84
2.0886e-05
5.718e-08
d
yr
n .1686849389900988 1.6509e-09 deg/d
Q 3.265300577683203 2.1304e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1902  
   data-arc span      12352 days (33.82 yr)  
   first obs. used      1986-12-30  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48713  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:35:30  

Additional Information
 Earth MOID = 2.23248 au 
 Jupiter MOID = 1.75213 au 
 T_jup = 3.164 
[ 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 12.8   n/a MPO452384  
diameter diameter 18.102 km 0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.037   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15147 Siegfried           Discovered 2000 Mar. 11 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Ray M. Siegfried (b. 1943) is active in numerous civic, business, cultural and community associations. In 1990 he was presented with the "Brotherhood Award" from the National Conference of Christians and Jews. He is currently chairman of the board of the aerospace NORDAM Group. The name was suggested by T. W. Rettig.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040713/MPCPages.arcLast Updated: 2004-07-14

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1983-Mar-20 23:09 00:03 Psych 0.0184805026444605 0.0184759165095833 0.0184850903505546 2.84773963750471 2.84773940760463 2445414.464400378 2.69082747105066 359.955919605517 60.7285248990796 -51.655331245767 35955.7924414046 T 30 CATAB v2.0f-lin.ifort 2020-Nov-13 02:35:35 2020-Nov-13 02:35

Alternate Designations
 2000 EJ134 = 1986 YM1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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