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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0802955711613874 3.7459e-08  
a 2.371191641069675 1.2662e-08 au
q 2.180795453916878 8.7427e-08 au
i 5.872863813214742 5.241e-06 deg
node 324.569220869713 4.2301e-05 deg
peri 279.6783786100022 5.5264e-05 deg
M 96.32125320693719 3.771e-05 deg
tp 2458243.664516753868
(2018-May-05.16451675)
0.00013892 TDB
period 1333.670085174467
3.65
1.0683e-05
2.925e-08
d
yr
n .2699318249707203 2.1622e-09 deg/d
Q 2.561587828222471 1.3679e-08 au
  Orbit Determination Parameters
   # obs. used (total)      861  
   data-arc span      7623 days (20.87 yr)  
   first obs. used      1998-12-17  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5502  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:15:02  

Additional Information
 Earth MOID = 1.17664 au 
 Jupiter MOID = 2.47352 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
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin