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 ]  
85351 (1995 UC18)
Classification: Main-belt Asteroid          SPK-ID: 2085351
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07471387249219895 4.026e-08  
a 3.076029037852129 2.8301e-08 au
q 2.846206996535743 1.293e-07 au
i 13.56742063897841 5.8189e-06 deg
node 198.3373657733113 1.9305e-05 deg
peri 113.0097268068756 4.7218e-05 deg
M 181.3701107918282 4.1494e-05 deg
tp 2459578.267733401250
(2021-Dec-29.76773340)
0.00022891 TDB
period 1970.534637762891
5.40
2.7194e-05
7.445e-08
d
yr
n .1826915361450844 2.5212e-09 deg/d
Q 3.305851079168514 3.0415e-08 au
  Orbit Determination Parameters
   # obs. used (total)      419  
   data-arc span      10319 days (28.25 yr)  
   first obs. used      1990-11-12  
   last obs. used      2019-02-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58465  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:48:53  

Additional Information
 Earth MOID = 1.86635 au 
 Jupiter MOID = 1.94306 au 
 T_jup = 3.182 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456952.5 (2014-Oct-22.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07347524250940919 4.0276e-08  
q 2.849620423561738 1.2906e-07 au
tp 2457608.185650763610
(2016-Aug-07.68565076)
0.00023017 TDB
node 198.3580467728673 1.9303e-05 deg
peri 113.1767766146399 4.7911e-05 deg
i 13.56770279272866 5.8193e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      419  
   data-arc span      10319 days (28.25 yr)  
   first obs. used      1990-11-12  
   last obs. used      2019-02-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58465  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:48:53  

Additional Information
 Jupiter MOID = 1.94306 au 
 T_jup = 3.182 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.62219119279824E-15 -5.092065845731829E-15 1.523693936954319E-12 -7.059688022104789E-15 3.094375174515996E-13 -4.992340411820449E-15
q -5.092065845731829E-15 1.665636552107285E-14 -4.437083425945048E-12 2.475734450104362E-14 -9.542087135997066E-13 2.015653094989764E-14
tp 1.523693936954319E-12 -4.437083425945048E-12 5.297747987879847E-8 -1.322474228878564E-11 1.010580650684059E-8 -1.25938471225401E-11
node -7.059688022104789E-15 2.475734450104362E-14 -1.322474228878564E-11 3.725988650514298E-10 -3.642892210165551E-10 8.572354128949852E-12
peri 3.094375174515996E-13 -9.542087135997066E-13 1.010580650684059E-8 -3.642892210165551E-10 2.295444662855583E-9 -1.076724622608888E-11
i -4.992340411820449E-15 2.015653094989764E-14 -1.25938471225401E-11 8.572354128949852E-12 -1.076724622608888E-11 3.386367409337321E-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 MPO436372  
diameter diameter 4.469 km 0.461 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.097   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85351 (1995 UC18)          Discovered 1995-Oct-18 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1995 UC18 = 1993 FG65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-12 09:23 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin