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 ]  
172393 (2003 AK68)
Classification: Outer Main-belt Asteroid          SPK-ID: 2172393
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0731696038499325 5.485e-08  
a 3.204325731598022 3.6268e-08 au
q 2.96986648721085 1.8625e-07 au
i 12.1343855446093 6.5378e-06 deg
node 72.84570880710311 2.7054e-05 deg
peri 46.51916014560032 5.418e-05 deg
M 50.14978665628172 4.448e-05 deg
tp 2458908.643075382010
(2020-Feb-29.14307538)
0.00025901 TDB
period 2095.093516201741
5.74
3.557e-05
9.739e-08
d
yr
n .1718300387147658 2.9173e-09 deg/d
Q 3.438784975985195 3.8922e-08 au
  Orbit Determination Parameters
   # obs. used (total)      354  
   data-arc span      7035 days (19.26 yr)  
   first obs. used      2001-10-20  
   last obs. used      2021-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54981  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-23 22:18:19  

Additional Information
 Earth MOID = 2.001 au 
 Jupiter MOID = 1.78824 au 
 T_jup = 3.154 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457571.5 (2016-Jul-02.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07412991070285586 5.4819e-08  
q 2.965259217811811 1.8611e-07 au
tp 2456818.155215192822
(2014-Jun-09.65521519)
0.00025913 TDB
node 72.86633366538915 2.7052e-05 deg
peri 47.22981034178213 5.3661e-05 deg
i 12.13686403935292 6.5391e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      354  
   data-arc span      7035 days (19.26 yr)  
   first obs. used      2001-10-20  
   last obs. used      2021-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54981  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-23 22:18:19  

Additional Information
 Jupiter MOID = 1.78824 au 
 T_jup = 3.154 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.005157792517757E-15 -1.004629628912978E-14 -5.668309795801338E-13 -5.021973339478816E-15 -1.345081501582142E-13 -1.791876721644804E-15
q -1.004629628912978E-14 3.463762790215842E-14 3.001811200623959E-13 1.614489473387306E-14 2.287343204001587E-13 8.239636696225662E-15
tp -5.668309795801338E-13 3.001811200623959E-13 6.714590576324961E-8 -7.122072162819201E-12 1.203544475214474E-8 -9.512512311539111E-12
node -5.021973339478816E-15 1.614489473387306E-14 -7.122072162819201E-12 7.318125306453461E-10 -7.162223100345239E-10 4.075236121450545E-12
peri -1.345081501582142E-13 2.287343204001587E-13 1.203544475214474E-8 -7.162223100345239E-10 2.879519931586031E-9 -5.417327557970511E-12
i -1.791876721644804E-15 8.239636696225662E-15 -9.512512311539111E-12 4.075236121450545E-12 -5.417327557970511E-12 4.27597847990502E-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 15.22   n/a E2021B55  

172393 (2003 AK68)          Discovered 2003-Jan-08 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1902-May-09 04:24 00:06 Jupiter 1.87535805689487 1.87535731499579 1.87535879879672 3.20052664306317 3.05614996529774 2415878.683341705 6.18090564005523 333.694698959226 26.4350535570788 86.7006099532593 1996098.52864695 T 20 CATAB v2.0f-lin.ifort 2021-Feb-23 22:18:20 2021-Feb-23 22:18
1913-Jul-22 05:25 00:05 Jupiter 1.9069433235828 1.90694229914725 1.906944348028 3.77382410286787 3.65422934464187 2419970.726038339 5.13768838234869 303.787711084317 30.2781131565066 -85.7405677952867 2253798.42987054 T 20 CATAB v2.0f-lin.ifort 2021-Feb-23 22:18:20 2021-Feb-23 22:18
1924-Oct-13 00:09 00:04 Jupiter 1.98440766083249 1.98440631183189 1.98440900983885 4.24803849162992 4.14634213405248 2424071.506193619 4.34841350621952 226.012629172938 38.0965249463467 -77.9204762177833 2458894.67135549 T 20 CATAB v2.0f-lin.ifort 2021-Feb-23 22:18:20 2021-Feb-23 22:18
2047-Oct-23 07:34 00:02 Jupiter 1.90697627963301 1.90697560313724 1.906976956129 4.53491778585169 4.43589206594523 2469006.814956388 1.52953568021884 129.351215064077 28.6169515614106 -85.342967683772 2194697.5682689 T 20 CATAB v2.0f-lin.ifort 2021-Feb-23 22:18:20 2021-Feb-23 22:18
2058-Dec-25 04:31 00:02 Jupiter 1.85367747640917 1.85367680266612 1.85367815015222 3.83471002643082 3.7136394022603 2473087.688263524 2.1988608897231 167.448279330226 28.9622290379092 -89.2395085770162 1845135.12666495 T 20 CATAB v2.0f-lin.ifort 2021-Feb-23 22:18:20 2021-Feb-23 22:18
2070-Feb-19 05:19 00:03 Jupiter 1.84687292244443 1.84687220403321 1.84687364085554 3.04176409435128 2.88705357570022 2477161.721710233 3.02108965604127 270.359893806535 33.182566367878 -85.7505974135276 1996706.74900558 T 20 CATAB v2.0f-lin.ifort 2021-Feb-23 22:18:20 2021-Feb-23 22:18
2081-Apr-07 02:29 00:04 Jupiter 1.8637498380222 1.86374909722925 1.86375057881503 2.59597973239402 2.41457373927098 2481226.603131378 3.86811270971894 239.407736466532 31.5159573044631 -88.1884196373774 2253120.30982227 T 20 CATAB v2.0f-lin.ifort 2021-Feb-23 22:18:20 2021-Feb-23 22:18
2092-May-27 04:26 00:04 Jupiter 1.88682244629491 1.88682173200186 1.88682316058785 2.9269107655823 2.76929179309524 2485294.685025012 4.47168445211519 219.66219761454 25.5639327742864 84.3801561671767 2045501.0595374 T 20 CATAB v2.0f-lin.ifort 2021-Feb-23 22:18:20 2021-Feb-23 22:18
2103-Aug-01 06:27 00:05 Jupiter 1.927896832333 1.92789599665012 1.92789766802004 3.59183966331182 3.46736370826973 2489376.769064914 4.9136143661906 269.082903448866 29.1630390367488 -88.6600573782373 2183042.52628119 T 20 CATAB v2.0f-lin.ifort 2021-Feb-23 22:18:20 2021-Feb-23 22:18
2114-Oct-16 16:46 00:05 Jupiter 1.99460068594307 1.99459934183821 1.99460203005859 4.18321628155655 4.08043907959014 2493471.198836221 5.39707005871078 290.380446039472 34.4510610216171 -80.8487193493019 2507280.27614331 T 20 CATAB v2.0f-lin.ifort 2021-Feb-23 22:18:20 2021-Feb-23 22:18
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-05 02:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin