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16975 Delamere (1998 YX29)
Classification: Main-belt Asteroid          SPK-ID: 2016975
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2174391644338994 7.0775e-08  
a 2.392442539987139 1.5318e-08 AU
q 1.87223183313622 1.7231e-07 AU
i 10.69889670173822 9.6106e-06 deg
node 8.222412810443142 3.2536e-05 deg
peri 229.6647394768195 3.9778e-05 deg
M 24.95670522726955 2.3616e-05 deg
tp 2456906.798735976591
(2014-Sep-06.29873598)
8.8483e-05 JED
period 1351.638957997088
3.70
1.2981e-05
3.554e-08
d
yr
n .2663433144406123 2.5579e-09 deg/d
Q 2.912653246838058 1.8649e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      892  
   data-arc span      9034 days (24.73 yr)  
   first obs. used      1989-09-25  
   last obs. used      2014-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51786  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:33:53  

Additional Information
 Earth MOID = .882981 AU 
 T_jup = 3.476 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7 mag n/a MPO263498  

16975 Delamere           Discovered 1998 Dec. 27 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
W. Alan Delamere (b. 1935), recently retired from Ball Aerospace and Technology, has made major contributions to cometary science, ranging from management of the Halley multicolor camera on the Giotto mission to his insightful approach to the original design of the Deep Impact mission.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050721/MPCPages.arcLast Updated: 2005-07-21

Alternate Designations
 1998 YX29 = 1989 SU8 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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