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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
90145 (2002 YA9)
Classification: Main-belt Asteroid          SPK-ID: 2090145
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09766580938138275 3.2372e-08  
a 2.400328996026759 9.638e-09 au
q 2.165898921848204 8.0794e-08 au
i 7.481868748540262 3.1305e-06 deg
node 91.30094223185435 2.9682e-05 deg
peri 318.8652073879667 3.5497e-05 deg
M 30.82654395227812 1.9092e-05 deg
tp 2459280.187357970192
(2021-Mar-06.68735797)
7.202e-05 TDB
period 1358.327783859025
3.72
8.1811e-06
2.24e-08
d
yr
n .2650317576345497 1.5963e-09 deg/d
Q 2.634759070205314 1.0579e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1093  
   data-arc span      8151 days (22.32 yr)  
   first obs. used      1998-11-11  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51862  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:37:17  

Additional Information
 Earth MOID = 1.18291 au 
 Jupiter MOID = 2.6627 au 
 T_jup = 3.508 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.48   n/a E2021B10  
diameter diameter 1.986 km 0.265 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.340   0.092 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90145 (2002 YA9)          Discovered 2002-Dec-31 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 2002 YA9 = 1998 VT50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-24 19:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin