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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2298375099273278 8.3363e-08  
a 2.336878384812507 1.2378e-08 au
q 1.799776075844205 1.9988e-07 au
i 24.45822385205137 7.2453e-06 deg
node 335.6791057449062 1.0563e-05 deg
peri 128.3331624542599 1.8513e-05 deg
M 336.9842622029171 1.1593e-05 deg
tp 2459083.920923763126
(2020-Aug-22.42092376)
4.2176e-05 TDB
period 1304.825976881425
3.57
1.0367e-05
2.838e-08
d
yr
n .275898860367887 2.192e-09 deg/d
Q 2.87398069378081 1.5222e-08 au
  Orbit Determination Parameters
   # obs. used (total)      619  
   data-arc span      8042 days (22.02 yr)  
   first obs. used      1998-10-17  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53733  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:01:02  

Additional Information
 Earth MOID = .882929 au 
 Jupiter MOID = 2.34806 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 2020-Nov-28 20:27 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin