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 ]  
136628 (1994 PL21)
Classification: Outer Main-belt Asteroid          SPK-ID: 2136628
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1520190345961212 4.7685e-08  
a 3.204672467688338 2.4609e-08 au
q 2.717501252953588 1.577e-07 au
i 1.088147760477388 4.9544e-06 deg
node 129.0464092205723 0.00023773 deg
peri 214.077295014603 0.00023823 deg
M 167.5429621847462 1.6176e-05 deg
tp 2458025.291249561551
(2017-Sep-28.79124956)
8.8998e-05 TDB
period 2095.433586584903
5.74
2.4136e-05
6.608e-08
d
yr
n .1718021522155331 1.9789e-09 deg/d
Q 3.691843682423089 2.835e-08 au
  Orbit Determination Parameters
   # obs. used (total)      613  
   data-arc span      15493 days (42.42 yr)  
   first obs. used      1977-10-16  
   last obs. used      2020-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54538  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 15:51:11  

Additional Information
 Earth MOID = 1.70972 au 
 Jupiter MOID = 1.71213 au 
 T_jup = 3.175 
[ 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 15.0   n/a MPO453849  
diameter diameter 5.964 km 0.335 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136628 (1994 PL21)          Discovered 1994-Aug-12 by Elst, E. W. at La Silla
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ 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
1957-Aug-15 17:00 00:03 Jupiter 1.95353992776904 1.95353886241261 1.95354099312681 2.6562096040478 2.48762590193664 2436066.208366022 2.71537293657969 119.090208657229 15.1452969406691 -77.3457612974283 2351234.84626403 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 15:51:12 2020-Nov-12 15:51
1968-Oct-18 22:59 00:02 Jupiter 1.82968411535999 1.8296833601864 1.8296848705341 2.20812330215099 1.98744585630527 2440148.457350259 2.10412730480105 103.706302436307 6.60992013350642 -84.1873712196058 2215115.08377192 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 15:51:12 2020-Nov-12 15:51
1980-Jan-02 00:17 00:02 Jupiter 1.74542092374902 1.74542039957758 1.74542144792025 1.9787086288034 1.7160193791304 2444240.511756010 1.51443100954454 85.4721779675763 12.9539172000319 -84.1009455921182 2227048.50267596 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 15:51:12 2020-Nov-12 15:51
1991-Mar-17 13:17 < 00:01 Jupiter 1.71262313866347 1.71262266376531 1.71262361356134 1.97910257084194 1.71105076942756 2448333.053259546 0.988892537464123 63.3984583066768 15.9945066377699 -82.6892949854872 2217947.58947841 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 15:51:12 2020-Nov-12 15:51
2002-May-20 17:52 < 00:01 Jupiter 1.74569463111493 1.74569415529577 1.74569510693389 2.25652367472373 2.03014431539326 2452415.244460039 0.53014028643877 48.5356129323626 4.64139925005378 88.970269914766 2233702.18108192 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 15:51:12 2020-Nov-12 15:51
2013-Jul-05 13:45 < 00:01 Jupiter 1.83606125189667 1.83606081664814 1.83606168714509 2.84071711944741 2.67339148924416 2456479.072806519 0.216427871776827 45.0831273757068 11.6715164462707 89.2065954614857 2854307.98848076 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 15:51:12 2020-Nov-12 15:51
2024-Jul-31 17:03 < 00:01 Jupiter 1.96918198814736 1.96918156643709 1.96918240985763 3.72772789513817 3.61049535480364 2460523.210342797 0.431574408391714 43.4766819715473 16.7583336045314 -86.7946123328921 3620564.92240586 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 15:51:12 2020-Nov-12 15:51
2124-Mar-30 13:17 00:03 Jupiter 1.98047765644293 1.98047667061629 1.98047864227071 2.77887955184736 2.62045790184542 2496924.053256195 3.01442927615265 114.448378442731 15.0730412640407 -78.9511243929071 2289389.00074387 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 15:51:12 2020-Nov-12 15:51
2135-Jun-03 07:31 00:03 Jupiter 1.86556631893999 1.86556531932966 1.86556731855223 2.31177738225892 2.10624197694746 2501005.812958192 3.36642950218257 142.545973862392 6.20856480424184 -85.5104513051481 2132248.53165923 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 15:51:12 2020-Nov-12 15:51
2146-Aug-16 07:50 00:04 Jupiter 1.78209378729386 1.78209296101114 1.78209461357912 2.04820847557401 1.80126773002153 2505097.826483148 3.78990702644239 170.568303113248 7.48528649367359 -89.0269604919358 2104434.59844501 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 15:51:12 2020-Nov-12 15:51
2157-Nov-02 04:37 00:04 Jupiter 1.74510578370491 1.7451052604219 1.74510630698862 2.00017871532864 1.74068213511238 2509193.692553757 4.35840960013543 185.231969644058 10.9898845745797 -86.0465435688376 2287896.34099173 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 15:51:12 2020-Nov-12 15:51
2169-Jan-10 17:38 00:05 Jupiter 1.76069648944822 1.76069586984539 1.76069710905265 2.18920546601137 1.95716012078306 2513281.234570768 5.11640306570107 147.400344547291 7.54865709386863 -83.549767120847 2320291.2241808 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 15:51:12 2020-Nov-12 15:51
2180-Mar-04 17:32 00:06 Jupiter 1.83435250140239 1.83435125691796 1.83435374588609 2.66986400135594 2.49091601865639 2517352.230713494 5.98552366508826 60.0482469003777 13.3243225016274 79.6843670200178 1003125.65994396 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 15:51:12 2020-Nov-12 15:51
2191-Apr-09 08:08 00:07 Jupiter 1.94782423760185 1.94782243160938 1.94782604359465 3.44147205205027 3.31270560726249 2521404.838866159 6.78909813187879 110.183576052185 25.8034138079637 -59.9073457574776 1350594.03691014 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 15:51:12 2020-Nov-12 15:51

Alternate Designations
 1994 PL21 = 3067 T-3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-17 07:52 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin