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16888 Michaelbarber (1998 BM26)
Classification: Main-belt Asteroid          SPK-ID: 2016888
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .178876745725644 3.9167e-08  
a 2.581305736517052 1.143e-08 au
q 2.119570166645945 1.0555e-07 au
i 13.71513608339854 5.3864e-06 deg
node 65.72170020434673 1.5786e-05 deg
peri 253.6916041226632 2.2734e-05 deg
M 34.59504533894187 1.7537e-05 deg
tp 2459250.930965995286
(2021-Feb-05.43096600)
7.3588e-05 TDB
period 1514.808023179771
4.15
1.0062e-05
2.755e-08
d
yr
n .2376538772512672 1.5785e-09 deg/d
Q 3.043041306388159 1.3475e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1197  
   data-arc span      10154 days (27.80 yr)  
   first obs. used      1992-11-17  
   last obs. used      2020-09-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53806  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:45:38  

Additional Information
 Earth MOID = 1.15283 au 
 Jupiter MOID = 2.33346 au 
 T_jup = 3.362 
[ 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 14.28   n/a E2021B10  
diameter diameter 4.200 km 1.204 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.302   0.179 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16888 Michaelbarber           Discovered 1998 Jan. 29 at Farra d´Isonzo.
Michael R. Barber (b. 1947), a lawyer and amateur astronomer in the \gamma -ray bursts field at the Santa Barbara Astronomical Group, co-founded a small CCD brand that in 1991 developed star tracking equipment, allowing the start of CCD revolution in the amateur astronomer's world.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020921/MPCPages.arcLast Updated: 2003-10-02

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