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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
100170 (1993 UE8)
Classification: Main-belt Asteroid          SPK-ID: 2100170
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2125676039947331 5.7485e-08  
a 3.021583114965235 2.5659e-08 au
q 2.379292431946133 1.8341e-07 au
i 6.125947383283326 4.0842e-06 deg
node 100.5605387216476 6.4587e-05 deg
peri 313.5861127618647 6.609e-05 deg
M 6.9288828532701 1.4531e-05 deg
tp 2458963.575811256208
(2020-Apr-24.07581126)
7.7182e-05 TDB
period 1918.448937477931
5.25
2.4437e-05
6.69e-08
d
yr
n .1876515934134115 2.3903e-09 deg/d
Q 3.663873797984337 3.1114e-08 au
  Orbit Determination Parameters
   # obs. used (total)      542  
   data-arc span      9509 days (26.03 yr)  
   first obs. used      1993-10-10  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55912  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 11:51:58  

Additional Information
 Earth MOID = 1.39599 au 
 Jupiter MOID = 1.71864 au 
 T_jup = 3.203 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456966.5 (2014-Nov-05.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2072034641399 5.669e-08  
q 2.398630538815157 1.7988e-07 au
tp 2457037.060264333597
(2015-Jan-14.56026433)
7.2194e-05 TDB
node 100.9439093588245 6.4652e-05 deg
peri 312.506755968809 6.632e-05 deg
i 6.117721245870519 4.0721e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      542  
   data-arc span      9509 days (26.03 yr)  
   first obs. used      1993-10-10  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55912  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 11:51:58  

Additional Information
 Jupiter MOID = 1.71864 au 
 T_jup = 3.203 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.213704058609898E-15 -1.014271575078567E-14 -2.204025264473049E-12 -1.482743343119282E-14 -4.389594696978268E-13 -6.849266444157728E-15
q -1.014271575078567E-14 3.235814592333838E-14 6.961075559729201E-12 4.174314554974606E-14 1.389446858175138E-12 2.253107101581261E-14
tp -2.204025264473049E-12 6.961075559729201E-12 5.211970338602088E-9 1.74410664558743E-11 1.148071678144443E-9 7.261297997483612E-12
node -1.482743343119282E-14 4.174314554974606E-14 1.74410664558743E-11 4.179913917086887E-9 -4.15234434467272E-9 -4.340808922332791E-11
peri -4.389594696978268E-13 1.389446858175138E-12 1.148071678144443E-9 -4.15234434467272E-9 4.398388062196357E-9 4.4655928241874E-11
i -6.849266444157728E-15 2.253107101581261E-14 7.261297997483612E-12 -4.340808922332791E-11 4.4655928241874E-11 1.658178813250339E-11

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 15.1   n/a MPO493563  
diameter diameter 5.823 km 0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100170 (1993 UE8)          Discovered 1993-Oct-20 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1993 UE8 = 2003 QU95 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-May-28 09:07 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin