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 ]  
129975 (1999 UA36)
Classification: Main-belt Asteroid          SPK-ID: 2129975
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1422064452898001 5.062e-08  
a 2.591372660071998 1.9994e-08 au
q 2.222862765661985 1.3648e-07 au
i 8.268085520481211 5.7278e-06 deg
node 4.693212163080025 4.1599e-05 deg
peri 204.7168676035132 4.998e-05 deg
M 124.7499008681628 3.3204e-05 deg
tp 2458472.503621156234
(2018-Dec-20.00362116)
0.00013613 TDB
period 1523.678135701552
4.17
1.7634e-05
4.828e-08
d
yr
n .2362703720456316 2.7345e-09 deg/d
Q 2.95988255448201 2.2837e-08 au
  Orbit Determination Parameters
   # obs. used (total)      466  
   data-arc span      6692 days (18.32 yr)  
   first obs. used      1999-10-15  
   last obs. used      2018-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58878  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 05:09:56  

Additional Information
 Earth MOID = 1.22148 au 
 Jupiter MOID = 2.01637 au 
 T_jup = 3.391 
[ 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 15.7   n/a MPO245070  
diameter diameter 4.382 km 0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129975 (1999 UA36)          Discovered 1999-Oct-31 by Spacewatch at Kitt Peak
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

Alternate Designations
 1999 UA36 = 2002 JE43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-27 07:16 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin