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 ]  
181712 (1993 TQ16)
Classification: Main-belt Asteroid          SPK-ID: 2181712
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2419894713063338 6.9994e-08  
a 2.581238787495539 2.3284e-08 au
q 1.956606177994092 1.8921e-07 au
i 18.71311245301647 6.9633e-06 deg
node 22.62703793519011 1.1632e-05 deg
peri 324.7362527903651 1.7982e-05 deg
M 262.5443269581452 1.4804e-05 deg
tp 2459806.558033819806
(2022-Aug-15.05803382)
6.165e-05 TDB
period 1514.749091227668
4.15
2.0496e-05
5.611e-08
d
yr
n .2376631232755708 3.2158e-09 deg/d
Q 3.205871396996987 2.8919e-08 au
  Orbit Determination Parameters
   # obs. used (total)      640  
   data-arc span      10077 days (27.59 yr)  
   first obs. used      1993-10-09  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50933  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:38:32  

Additional Information
 Earth MOID = .977444 au 
 Jupiter MOID = 2.31545 au 
 T_jup = 3.310 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458077.5 (2017-Nov-20.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2411006162945103 7.0012e-08  
q 1.959556715444659 1.8911e-07 au
tp 2458291.008813830204
(2018-Jun-21.50881383)
6.6621e-05 TDB
node 22.6506996811868 1.1633e-05 deg
peri 324.6806229974022 1.8023e-05 deg
i 18.70848776203166 6.9616e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      640  
   data-arc span      10077 days (27.59 yr)  
   first obs. used      1993-10-09  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50933  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:38:32  

Additional Information
 Jupiter MOID = 2.31545 au 
 T_jup = 3.310 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.901695840828311E-15 -1.319386027831945E-14 3.6881248028731E-12 4.128425067662612E-14 7.311016891364815E-13 -1.296706193186906E-14
q -1.319386027831945E-14 3.576349577622448E-14 -9.951618236984297E-12 -1.126708910560389E-13 -1.978042391721533E-12 3.596049054462806E-14
tp 3.6881248028731E-12 -9.951618236984297E-12 4.438309530477159E-9 3.373076095327719E-11 9.250198648933097E-10 -1.787351799004968E-11
node 4.128425067662612E-14 -1.126708910560389E-13 3.373076095327719E-11 1.353378505020197E-10 -1.205949047470209E-10 5.920571983948658E-12
peri 7.311016891364815E-13 -1.978042391721533E-12 9.250198648933097E-10 -1.205949047470209E-10 3.248246714303741E-10 -9.642113784655412E-12
i -1.296706193186906E-14 3.596049054462806E-14 -1.787351799004968E-11 5.920571983948658E-12 -9.642113784655412E-12 4.846449877530468E-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 15.37   n/a MPCxxxxx  
diameter diameter 3.953 km 0.862 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.094   0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

181712 (1993 TQ16)          Discovered 1993-Oct-09 by Elst, E. W. at La Silla
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

Alternate Designations
 1993 TQ16 = 2000 FN55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-25 06:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin