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89903 Post (2002 DL3)
Classification: Outer Main-belt Asteroid          SPK-ID: 2089903
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1270797124036498 5.0495e-08  
a 3.969387188397076 5.1339e-08 au
q 3.464958606076844 2.058e-07 au
i 5.623935364489921 5.6197e-06 deg
node 56.37049668535906 4.5658e-05 deg
peri 345.0206266606374 4.9447e-05 deg
M 205.2387420611156 2.1967e-05 deg
tp 2460242.276316675835
(2023-Oct-24.77631668)
0.00019154 TDB
period 2888.574827815354
7.91
5.604e-05
1.534e-07
d
yr
n .1246289334565275 2.4179e-09 deg/d
Q 4.473815770717309 5.7863e-08 au
  Orbit Determination Parameters
   # obs. used (total)      569  
   data-arc span      10511 days (28.78 yr)  
   first obs. used      1991-10-04  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62498  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:45:19  

Additional Information
 Earth MOID = 2.47394 au 
 Jupiter MOID = .937522 au 
 T_jup = 3.035 
[ 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 14.1   n/a MPO474778  

89903 Post           Discovered 2002 Feb. 20 by B. L. Stevens at Desert Moon Observatory.
Cecil Post (b. 1917) is an amateur astronomer and former engineer in the antenna section of the physical sciences laboratory in Las Cruces, New Mexico. He was an early and active member of the Astronomical Society of Las Cruces and was a frequent officer, including president, of that organization.
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

[ show close-approach data ]
Alternate Designations
 2002 DL3 = 1995 FH14 = 1999 TD292 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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