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 ]  
344316 (2001 UD201)
Classification: Main-belt Asteroid          SPK-ID: 2344316
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1596677651290208 1.0286e-07  
a 3.050559164031044 3.7999e-08 au
q 2.563483199916353 3.0222e-07 au
i 6.310934057849355 1.0855e-05 deg
node 356.9950973532246 7.2195e-05 deg
peri 16.9897109223547 7.7009e-05 deg
M 184.3693896104691 2.6266e-05 deg
tp 2459949.935169994543
(2023-Jan-05.43516999)
0.00015013 TDB
period 1946.110990788935
5.33
3.6362e-05
9.955e-08
d
yr
n .1849843106091598 3.4563e-09 deg/d
Q 3.537635128145734 4.4066e-08 au
  Orbit Determination Parameters
   # obs. used (total)      163  
   data-arc span      6347 days (17.38 yr)  
   first obs. used      2001-09-20  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61466  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:42:51  

Additional Information
 Earth MOID = 1.56478 au 
 Jupiter MOID = 1.93756 au 
 T_jup = 3.208 
[ show covariance matrix ]

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 16.3   n/a MPO334856  

344316 (2001 UD201)          Discovered 2001-Oct-19 by NEAT at Palomar
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ 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
1945-Feb-25 08:07 00:04 Jupiter 1.95165129063807 1.95165038691443 1.95165219436138 2.81348709981672 2.65475114843162 2431511.838256907 4.20170527896338 290.24799014422 33.7992652721607 -88.3692695620206 1312343.14577244 T 10 CATAB v2.0e-lin.ifort 2019-Jul-13 15:42:53 2019-Jul-13 15:42
1993-Oct-29 06:11 00:01 Jupiter 1.97186255556959 1.97186142325613 1.97186368788315 2.56196252087083 2.38841848835135 2449289.757737205 1.38544685641094 137.451905562174 30.0027748854003 79.0985335684567 1161725.70449581 T 10 CATAB v2.0e-lin.ifort 2019-Jul-13 15:42:53 2019-Jul-13 15:42
2052-Feb-05 06:38 00:02 Jupiter 1.94693487155027 1.94693378332152 1.946935959781 2.76574740578133 2.60369928773906 2470572.776127106 2.16234087787178 207.071283673691 35.9571946104525 86.7942283005189 1340983.91438493 T 10 CATAB v2.0e-lin.ifort 2019-Jul-13 15:42:53 2019-Jul-13 15:42
2100-Oct-11 15:06 00:05 Jupiter 1.97847994380743 1.97847905991495 1.97848082770003 2.49893911608231 2.32130589767575 2488353.129363591 5.18066756690639 162.888864636298 39.2441501471765 89.160505645508 1284181.76881755 T 10 CATAB v2.0e-lin.ifort 2019-Jul-13 15:42:53 2019-Jul-13 15:42
2159-Jan-17 21:48 00:08 Jupiter 1.94891097810267 1.94890970253925 1.9489122537021 2.71301506690665 2.54778811365627 2509635.408195940 8.47396087820073 581.111823872206 33.9676300260565 89.2354508372887 1344437.74300559 T 10 CATAB v2.0e-lin.ifort 2019-Jul-13 15:42:53 2019-Jul-13 15:42
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-20 04:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin