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49616 (1999 FY42)
Classification: Main-belt Asteroid          SPK-ID: 2049616
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1247898764464688 3.8888e-08  
a 3.087621537232623 2.5429e-08 au
q 2.702317627087908 1.2678e-07 au
i 13.50727046170506 7.0244e-06 deg
node 353.3944422117776 1.8455e-05 deg
peri 88.47464484047021 3.3571e-05 deg
M 324.332141080507 2.7642e-05 deg
tp 2458796.840122989055
(2019-Nov-09.34012299)
0.00015277 TDB
period 1981.684531039536
5.43
2.4481e-05
6.703e-08
d
yr
n .1816636272631921 2.2442e-09 deg/d
Q 3.472925447377338 2.8602e-08 au
  Orbit Determination Parameters
   # obs. used (total)      948  
   data-arc span      10291 days (28.18 yr)  
   first obs. used      1991-10-04  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50897  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:22:26  

Additional Information
 Earth MOID = 1.7603 au 
 Jupiter MOID = 1.84772 au 
 T_jup = 3.172 
[ 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 MPO502487  
diameter diameter 10.244 km 0.298 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.397 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.051   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49616 (1999 FY42)          Discovered 1999-Mar-20 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 FY42 = 1991 TU3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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