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 ]  
78250 (2002 PE9)
Classification: Outer Main-belt Asteroid          SPK-ID: 2078250
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1699422507165848 4.9293e-08  
a 3.200883237758396 2.0494e-08 au
q 2.656917936052745 1.5632e-07 au
i 4.680222248131188 5.5571e-06 deg
node 205.1446041754622 4.5791e-05 deg
peri 189.2841412010905 4.8582e-05 deg
M 10.03681134267059 1.2832e-05 deg
tp 2459142.182830688490
(2020-Oct-19.68283069)
7.4754e-05 TDB
period 2091.718199672532
5.73
2.0089e-05
5.5e-08
d
yr
n .1721073135264395 1.6529e-09 deg/d
Q 3.744848539464046 2.3977e-08 au
  Orbit Determination Parameters
   # obs. used (total)      709  
   data-arc span      10717 days (29.34 yr)  
   first obs. used      1991-09-15  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45566  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:14:21  

Additional Information
 Earth MOID = 1.66245 au 
 Jupiter MOID = 1.68926 au 
 T_jup = 3.166 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457742.5 (2016-Dec-20.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1708298046210205 4.9842e-08  
q 2.657846582110081 1.5674e-07 au
tp 2457025.951871393159
(2015-Jan-03.45187139)
8.0644e-05 TDB
node 205.3235877751772 4.5605e-05 deg
peri 186.3287813032281 4.8347e-05 deg
i 4.678376443033641 5.577e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      709  
   data-arc span      10717 days (29.34 yr)  
   first obs. used      1991-09-15  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45566  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:14:21  

Additional Information
 Jupiter MOID = 1.68926 au 
 T_jup = 3.166 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.484223824463809E-15 -7.775648463726133E-15 -4.735150598958087E-13 -2.700939102884493E-15 -4.829244537582368E-14 -1.144621624413206E-15
q -7.775648463726133E-15 2.456885372268279E-14 1.081061499718473E-12 6.21010766870508E-15 9.346283244909253E-14 4.021941997975134E-15
tp -4.735150598958087E-13 1.081061499718473E-12 6.503411500737698E-9 1.985584683940019E-11 1.293724759474889E-9 -7.938518794903231E-14
node -2.700939102884493E-15 6.21010766870508E-15 1.985584683940019E-11 2.07979048239871E-9 -2.069769450567288E-9 9.199335170882899E-12
peri -4.829244537582368E-14 9.346283244909253E-14 1.293724759474889E-9 -2.069769450567288E-9 2.337417140883173E-9 -9.216801009707371E-12
i -1.144621624413206E-15 4.021941997975134E-15 -7.938518794903231E-14 9.199335170882899E-12 -9.216801009707371E-12 3.110304661381713E-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 15.13   n/a E2021B10  
diameter diameter 5.933 km 0.357 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78250 (2002 PE9)          Discovered 2002-Aug-05 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ 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
1996-Feb-15 15:38 < 00:01 Jupiter 1.90327779581093 1.90327720361872 1.90327838800303 2.69469392509852 2.5241450445924 2450129.151467992 0.656574185268959 56.8229712594813 16.0006160850516 -82.7777819856326 2305755.4890496 T 20 CATAB v2.0f-lin.ifort 2021-Feb-24 07:14:22 2021-Feb-24 07:14
2007-Jan-19 21:54 < 00:01 Jupiter 1.73421523327578 1.73421471041261 1.73421575613876 2.09192474807053 1.84372245272872 2454120.412825153 0.428978110907536 63.7681863116652 22.3674304070158 82.134028938929 2267193.97906187 T 20 CATAB v2.0f-lin.ifort 2021-Feb-24 07:14:22 2021-Feb-24 07:14
2018-Jan-19 08:42 < 00:01 Jupiter 1.67885323712111 1.67885274257995 1.67885373166208 1.93944263225369 1.65903249281741 2458137.862410824 0.395208271413416 61.4090144344474 40.4848123415137 66.2855417107261 1898316.94296052 T 20 CATAB v2.0f-lin.ifort 2021-Feb-24 07:14:22 2021-Feb-24 07:14
2029-Jan-22 15:20 < 00:01 Jupiter 1.75292707640829 1.75292646294864 1.75292768986764 2.02582818503354 1.77131886844362 2462159.138704843 0.663014592291262 59.1839569563054 32.3579135962618 -87.1757483568206 1824258.15111407 T 20 CATAB v2.0f-lin.ifort 2021-Feb-24 07:14:22 2021-Feb-24 07:14
2040-Jan-09 08:19 00:01 Jupiter 1.92775330720868 1.92775248394865 1.92775413046871 2.46354724705561 2.27822267039297 2466162.846261234 1.0260348044673 63.469662192145 14.1848955744389 75.2955635241082 2096417.31831355 T 20 CATAB v2.0f-lin.ifort 2021-Feb-24 07:14:22 2021-Feb-24 07:14
2127-Apr-27 01:08 00:03 Jupiter 1.98094604193818 1.98094469328509 1.98094739059116 3.16073019761843 3.02242380921868 2498046.547393005 2.79722637217002 85.7477134002187 32.5033949080665 69.9302234585858 1382588.58984061 T 20 CATAB v2.0f-lin.ifort 2021-Feb-24 07:14:22 2021-Feb-24 07:14
2138-Mar-16 19:40 00:03 Jupiter 1.78742141175409 1.78742020603349 1.78742261747398 2.20243793517197 1.97559451543532 2502023.319480854 2.93219315431113 73.1767239165299 14.9424433580321 -83.4016496162668 1294904.12749257 T 20 CATAB v2.0f-lin.ifort 2021-Feb-24 07:14:22 2021-Feb-24 07:14
2149-Mar-01 18:23 00:03 Jupiter 1.67565953485411 1.6756589142587 1.6756601554517 1.91300722551096 1.62745953841097 2506026.265953279 2.99039491382975 161.875862923731 40.9425018563834 87.7333799647218 2015544.23428339 T 20 CATAB v2.0f-lin.ifort 2021-Feb-24 07:14:22 2021-Feb-24 07:14
2160-Mar-05 04:01 00:03 Jupiter 1.69489874560912 1.69489791739629 1.69489957382503 1.9622920990827 1.68851827893069 2510047.667308467 3.27828723853535 187.042510729676 40.9196639037592 85.4048091437862 1678948.45067643 T 20 CATAB v2.0f-lin.ifort 2021-Feb-24 07:14:22 2021-Feb-24 07:14
2171-Mar-01 10:08 00:04 Jupiter 1.83743215003528 1.83743044946715 1.83743385060781 2.26739277890513 2.05404642140552 2514060.922085182 3.82574286081402 187.603262773081 21.4209215596445 77.8460732286223 2041804.94253043 T 20 CATAB v2.0f-lin.ifort 2021-Feb-24 07:14:22 2021-Feb-24 07:14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Feb-27 22:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin