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 ]  
100167 (1993 UN2)
Classification: Main-belt Asteroid          SPK-ID: 2100167
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1815412868068044 1.1787e-07  
a 2.565358551666091 1.575e-08 au
q 2.099640059075789 3.0893e-07 au
i 3.442670374679083 7.8316e-06 deg
node 312.144324412693 7.7889e-05 deg
peri 190.9349433163773 7.9072e-05 deg
M 87.91349406062857 1.4425e-05 deg
tp 2458634.000338705276
(2019-May-30.50033871)
5.8005e-05 TDB
period 1500.792107922703
4.11
1.3821e-05
3.784e-08
d
yr
n .23987332962344 2.2091e-09 deg/d
Q 3.031077044256393 1.8609e-08 au
  Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      9267 days (25.37 yr)  
   first obs. used      1993-10-21  
   last obs. used      2019-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53874  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:07:41  

Additional Information
 Earth MOID = 1.11238 au 
 Jupiter MOID = 1.99218 au 
 T_jup = 3.407 
[ 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 16.1   n/a MPO417504  

100167 (1993 UN2)          Discovered 1993-Oct-21 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1993 UN2 = 1997 WC17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Feb-28 16:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin