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25598 (1999 YK16)
Classification: Main-belt Asteroid          SPK-ID: 2025598
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03526428678714771 3.762e-08  
a 2.979596788236942 1.6661e-08 au
q 2.87452343258649 1.1377e-07 au
i 11.25194817950859 4.1323e-06 deg
node 145.3272338535112 2.1342e-05 deg
peri 42.89529147433708 6.3897e-05 deg
M 307.354052465805 6.0292e-05 deg
tp 2459275.224327492464
(2021-Mar-01.72432749)
0.00031511 TDB
period 1878.601535912106
5.14
1.5756e-05
4.314e-08
d
yr
n .1916319097573884 1.6073e-09 deg/d
Q 3.084670143887394 1.7248e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1778  
   data-arc span      16116 days (44.12 yr)  
   first obs. used      1976-09-16  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48946  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:33:40  

Additional Information
 Earth MOID = 1.88874 au 
 Jupiter MOID = 1.90693 au 
 T_jup = 3.230 
[ 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 13.4   n/a MPO319402  
diameter diameter 7.732 km 0.228 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.383 h n/a LCDB (Rev. 2019-August); 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.]
geometric albedo albedo 0.170   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

25598 (1999 YK16)          Discovered 1999-Dec-31 by Spacewatch at Kitt Peak
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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