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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0352642829150565 3.8315e-08  
a 2.979596786918963 1.6915e-08 au
q 2.87452344285226 1.1532e-07 au
i 11.25194842526355 4.1496e-06 deg
node 145.3272358397906 2.1731e-05 deg
peri 42.89528858192519 6.4076e-05 deg
M 307.3540538864316 6.043e-05 deg
tp 2459275.224319896874
(2021-Mar-01.72431990)
0.00031586 TDB
period 1878.60153466565
5.14
1.5997e-05
4.38e-08
d
yr
n .1916319098845366 1.6318e-09 deg/d
Q 3.084670130985667 1.7512e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1727  
   data-arc span      15846 days (43.38 yr)  
   first obs. used      1976-09-16  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48946  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:30:55  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1915-May-09 03:52 00:02 Jupiter 1.92559994436526 1.92559946924946 1.92560041948424 4.15673053168854 4.0495258367053 2420626.661436895 2.42279159527064 196.959934551777 16.3107510851307 -86.25396800403 3887551.21030403 T 30 CATAB v2.0f-lin.ifort 2020-Feb-23 00:31:08 2020-Feb-23 00:31
1951-Sep-16 14:18 00:02 Jupiter 1.91882700137615 1.91882656031767 1.9188274424355 3.74589324226542 3.62613591768617 2433906.095736039 1.5882928289683 119.189501209648 15.6869782432251 82.5112811811567 3509441.8313079 T 30 CATAB v2.0f-lin.ifort 2020-Feb-23 00:31:08 2020-Feb-23 00:31
2069-Sep-25 07:34 00:01 Jupiter 1.91995761791664 1.91995723043117 1.91995800540232 4.06963661758205 3.95974842658908 2477014.815198157 1.37219488397837 114.128491206815 16.4400006974232 -87.9244594950264 3779360.53721827 T 30 CATAB v2.0f-lin.ifort 2020-Feb-23 00:31:08 2020-Feb-23 00:31
2106-Feb-07 09:17 00:02 Jupiter 1.94136148872667 1.94136100782318 1.94136196963226 3.5962804930051 3.47284129925511 2490297.887116698 2.37551363300924 161.733206480607 15.8819239269627 82.5511626891711 3399444.22155373 T 30 CATAB v2.0f-lin.ifort 2020-Feb-23 00:31:08 2020-Feb-23 00:31
2187-Oct-10 20:29 00:04 Jupiter 1.98398971423662 1.98398845519018 1.98399097330054 4.3600462462674 4.26100287495066 2520128.353290352 4.20451207529398 318.186264922369 17.476006538895 -79.8264028523588 4211279.89539907 T 30 CATAB v2.0f-lin.ifort 2020-Feb-23 00:31:08 2020-Feb-23 00:31
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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