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
JPL Small-Body Database Browser
Search: [ help ]  
101361 (1998 UJ)
Classification: Main-belt Asteroid          SPK-ID: 2101361
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2299018598590931 5.1705e-08  
a 2.337071490385682 1.0007e-08 au
q 1.799774408122351 1.2186e-07 au
i 24.4589157772858 7.0299e-06 deg
node 335.6769625592561 9.8753e-06 deg
peri 128.3140260845504 1.6317e-05 deg
M 32.17288028713217 1.1636e-05 deg
tp 2459083.874406887491
(2020-Aug-22.37440689)
4.1909e-05 TDB
period 1304.987714677685
3.57
8.382e-06
2.295e-08
d
yr
n .2758646659665416 1.7719e-09 deg/d
Q 2.874368572649013 1.2308e-08 au
  Orbit Determination Parameters
   # obs. used (total)      694  
   data-arc span      8181 days (22.40 yr)  
   first obs. used      1998-10-17  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53346  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:36:25  

Additional Information
 Earth MOID = .882902 au 
 Jupiter MOID = 2.34742 au 
 T_jup = 3.414 
[ 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 MPO351569  
diameter diameter 2.242 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.292   0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101361 (1998 UJ)          Discovered 1998-Oct-17 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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 2021-Apr-20 05:01 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin