Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
85838 (1998 YU2)
Classification: Main-belt Asteroid          SPK-ID: 2085838
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 .08004284704999141 3.7426e-08  
a 2.371820346717884 1.2249e-08 au
q 2.181973093475487 8.7283e-08 au
i 5.872675510735035 4.8282e-06 deg
node 324.5601135251127 4.22e-05 deg
peri 279.8130182720642 5.4552e-05 deg
M 204.1420096804906 3.7437e-05 deg
tp 2459578.127263865560
(2021-Dec-29.62726387)
0.00014045 TDB
period 1334.200540923902
3.65
1.0336e-05
2.83e-08
d
yr
n .2698245046061131 2.0903e-09 deg/d
Q 2.561667599960281 1.323e-08 au
  Orbit Determination Parameters
   # obs. used (total)      933  
   data-arc span      7712 days (21.11 yr)  
   first obs. used      1998-12-17  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53998  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:39:37  

Additional Information
 Earth MOID = 1.17797 au 
 Jupiter MOID = 2.47295 au 
 T_jup = 3.533 
[ 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 15.4   n/a MPO449533  
diameter diameter 1.887 km 0.476 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.413   0.226 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85838 (1998 YU2)          Discovered 1998-Dec-17 by ODAS at Caussols
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-02 13:49 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin