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 ]  
20938 (1075 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2020938
[ 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1745214755500575 2.7368e-08  
a 2.231973291250817 6.4816e-09 au
q 1.842446019073406 6.1632e-08 au
i 7.503482369208781 4.4167e-06 deg
node 350.6151002101067 2.4309e-05 deg
peri 271.7738188115383 2.7374e-05 deg
M 78.19922458615595 1.3163e-05 deg
tp 2458735.935320981161
(2019-Sep-09.43532098)		 4.4406e-05 TDB
period 1217.95689088768
3.33		 5.3054e-06
1.453e-08		 d
yr
n .2955769639249072 1.2875e-09 deg/d
Q 2.621500563428227 7.6128e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1097  
   data-arc span      17225 days (47.16 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54533  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:15:15  

Additional Information
 Earth MOID = .845972 au 
 Jupiter MOID = 2.4958 au 
 T_jup = 3.610 
[ 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 15.6   n/a MPO279732  
diameter diameter 2.589 km 0.278 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.166   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

20938 (1075 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1075 T-2 = 1993 RL17 = 1999 GP60 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-19 19:42 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin