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 ]  
146954 (2002 EQ90)
Classification: Main-belt Asteroid          SPK-ID: 2146954
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1221301922252769 4.7726e-08  
a 3.194313122638648 3.1724e-08 au
q 2.804191046943065 1.5019e-07 au
i 2.137516563261162 4.8573e-06 deg
node 61.75858065301367 0.00014035 deg
peri 155.066340123764 0.00014178 deg
M 319.423945662614 2.1802e-05 deg
tp 2458835.534690640469
(2019-Dec-18.03469064)
0.00012755 TDB
period 2085.281331866919
5.71
3.1064e-05
8.505e-08
d
yr
n .1726385761472759 2.5718e-09 deg/d
Q 3.584435198334231 3.5598e-08 au
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      6258 days (17.13 yr)  
   first obs. used      2002-02-10  
   last obs. used      2019-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57991  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 11:10:39  

Additional Information
 Earth MOID = 1.79734 au 
 Jupiter MOID = 1.38476 au 
 T_jup = 3.183 
[ 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 MPO432924  
diameter diameter 5.640 km 0.533 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146954 (2002 EQ90)          Discovered 2002-Mar-12 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ 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
1977-Nov-08 07:46 00:02 Jupiter 1.85168909969456 1.85168736534644 1.85169083404162 2.76740489721591 2.59685678159366 2443455.823834563 2.36897463252644 65.5366974305974 40.8655561509554 -48.4608874665395 938521.167890454 T 16 CATAB v2.0e-lin.ifort 2019-Jul-13 11:10:42 2019-Jul-13 11:10
1988-Sep-26 16:03 00:02 Jupiter 1.52641990225899 1.5264188102669 1.52642099424925 1.61968651519039 1.23027173324262 2447431.168992446 1.71108599379968 142.613696026501 98.3489915209855 41.1408499329674 1104117.42666537 T 16 CATAB v2.0e-lin.ifort 2019-Jul-13 11:10:42 2019-Jul-13 11:10
1999-Sep-15 08:19 < 00:01 Jupiter 1.38169121527752 1.38169070915784 1.38169172140505 1.21811810324516 0.507686336891916 2451436.846254434 0.91002030268018 1591.39149176935 422.108353960142 7.47902930974866 1477583.1279381 T 16 CATAB v2.0e-lin.ifort 2019-Jul-13 11:10:42 2019-Jul-13 11:10
2010-Sep-06 08:08 < 00:01 Jupiter 1.47916103277256 1.47916051381757 1.47916155172931 1.52260001956795 1.08306813123783 2455445.838715422 0.328051418305728 196.786251458817 100.765662051759 51.0725830842761 1969144.88385903 T 16 CATAB v2.0e-lin.ifort 2019-Jul-13 11:10:42 2019-Jul-13 11:10
2021-Jul-27 07:26 < 00:01 Jupiter 1.77689536986546 1.77689479583114 1.77689594389956 2.61162713345305 2.42223507172662 2459422.809944871 0.45198071730832 49.6499661428895 13.3578088465955 -87.9510401316582 2271762.76158765 T 16 CATAB v2.0e-lin.ifort 2019-Jul-13 11:10:42 2019-Jul-13 11:10
2120-Jan-04 10:33 00:04 Jupiter 1.70409986341289 1.7040974933164 1.70410223350531 2.15667305136078 1.9123647736655 2495376.939400508 3.91389212853009 76.552305541752 10.8665523884751 -80.7384783282634 676576.457001055 T 16 CATAB v2.0e-lin.ifort 2019-Jul-13 11:10:42 2019-Jul-13 11:10
2130-Dec-06 17:05 00:04 Jupiter 1.44334644193916 1.4433450154427 1.44334786843586 1.35073580996031 0.806718434664698 2499366.211653734 4.21321163907749 696.058584677723 213.624580900361 19.1913318138943 1036670.11651865 T 16 CATAB v2.0e-lin.ifort 2019-Jul-13 11:10:42 2019-Jul-13 11:10
2141-Dec-02 11:51 00:05 Jupiter 1.39674568233604 1.39674473949865 1.39674662521662 1.27222705350649 0.636953861535385 2503379.993541047 4.84275500232259 1318.1625918591 369.253800404596 27.5942662217187 1576043.88381321 T 16 CATAB v2.0e-lin.ifort 2019-Jul-13 11:10:42 2019-Jul-13 11:10
2152-Nov-10 09:17 00:06 Jupiter 1.58814849917965 1.58814521845086 1.58815177994049 1.92515725612158 1.62466957328802 2507375.886514839 6.03712150566095 479.874340709952 24.0562446545931 80.5972342577059 2059810.8984468 T 16 CATAB v2.0e-lin.ifort 2019-Jul-13 11:10:42 2019-Jul-13 11:10
2163-Sep-23 05:10 00:07 Jupiter 1.92929667968163 1.92929233346551 1.92930102589841 3.30727655390595 3.17175262041156 2511344.715328683 6.71420098047796 229.417374933048 34.8450028554352 -44.1036633955591 1270757.66966859 T 16 CATAB v2.0e-lin.ifort 2019-Jul-13 11:10:42 2019-Jul-13 11:10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-19 07:27 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin