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 ]  
39661 (1995 UT62)
Classification: Main-belt Asteroid          SPK-ID: 2039661
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 .2213242561624207 6.6027e-08  
a 2.538507524356617 1.2349e-08 au
q 1.976674234765681 1.697e-07 au
i 6.815491632792704 4.3716e-06 deg
node 68.64188533145247 7.9067e-05 deg
peri 228.4181398680458 8.2602e-05 deg
M 96.6885899426634 2.43e-05 deg
tp 2458603.729992766652
(2019-Apr-30.22999277)
0.00010061 TDB
period 1477.291195255904
4.04
1.078e-05
2.951e-08
d
yr
n .2436892612344034 1.7782e-09 deg/d
Q 3.100340813947553 1.5082e-08 au
  Orbit Determination Parameters
   # obs. used (total)      671  
   data-arc span      9300 days (25.46 yr)  
   first obs. used      1994-05-16  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60314  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:48:47  

Additional Information
 Earth MOID = .968551 au 
 Jupiter MOID = 2.13096 au 
 T_jup = 3.402 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457074.5 (2015-Feb-21.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .221560813325052 6.6365e-08  
q 1.975974798080085 1.7095e-07 au
tp 2457127.821721471409
(2015-Apr-15.32172147)
0.00010483 TDB
node 68.65289890684309 7.9096e-05 deg
peri 228.6762374506427 8.262e-05 deg
i 6.814902498832122 4.3745e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      671  
   data-arc span      9300 days (25.46 yr)  
   first obs. used      1994-05-16  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60314  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 05:48:47  

Additional Information
 Jupiter MOID = 2.13096 au 
 T_jup = 3.402 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.404283648039958E-15 -1.132733213684721E-14 5.645102233590728E-12 1.58669889817074E-13 1.270633276484287E-12 -2.727980109620247E-14
q -1.132733213684721E-14 2.922438487943091E-14 -1.479355483526899E-11 -4.121779807493248E-13 -3.340159791686904E-12 7.090821445205161E-14
tp 5.645102233590728E-12 -1.479355483526899E-11 1.098965836350748E-8 2.648228156568145E-10 2.656752220274492E-9 -4.583855277537165E-11
node 1.58669889817074E-13 -4.121779807493248E-13 2.648228156568145E-10 6.256219129931254E-9 -6.145211211114259E-9 -1.975346582772899E-10
peri 1.270633276484287E-12 -3.340159791686904E-12 2.656752220274492E-9 -6.145211211114259E-9 6.826093350160419E-9 1.842626617267009E-10
i -2.727980109620247E-14 7.090821445205161E-14 -4.583855277537165E-11 -1.975346582772899E-10 1.842626617267009E-10 1.913605517937206E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO347805  

39661 (1995 UT62)          Discovered 1995-Oct-25 by Spacewatch at Kitt Peak
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 UT62 = 1998 HL48 = 1999 TC238 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jun-04 05:41 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin