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16693 Moseley (1994 YC2)
Classification: Main-belt Asteroid          SPK-ID: 2016693
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1811414133880842 3.5622e-08  
a 2.657625423352928 1.0988e-08 au
q 2.176219397910673 9.342e-08 au
i 11.2739088947281 5.1606e-06 deg
node 271.2991672040898 1.8974e-05 deg
peri 120.9388594796402 2.5361e-05 deg
M 26.15888839072256 1.3872e-05 deg
tp 2459085.511114284792
(2020-Aug-24.01111428)
6.1124e-05 TDB
period 1582.483102460739
4.33
9.8143e-06
2.687e-08
d
yr
n .2274905807462999 1.4109e-09 deg/d
Q 3.139031448795183 1.2979e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1548  
   data-arc span      23879 days (65.38 yr)  
   first obs. used      1955-10-24  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43622  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:38:59  

Additional Information
 Earth MOID = 1.20686 au 
 Jupiter MOID = 2.35432 au 
 T_jup = 3.336 
[ 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 13.78   n/a E2021B10  
diameter diameter 5.485 km 0.743 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.234   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16693 Moseley           Discovered 1994 Dec. 26 by D. J. Asher at Siding Spring.
Terence J. C. A. Moseley (b. 1946), editor of Stardust, 1992 Aidan P. Fitzgerald Medallist and founding member of the Irish Federation of Astronomical Societies, was the first amateur to use the recently restored six-foot Birr telescope in Sept. 2001. The name was suggested by J. C. McConnell.
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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Alternate Designations
 1994 YC2 = 1998 QN89 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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