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100198 (1994 EA1)
Classification: Main-belt Asteroid          SPK-ID: 2100198
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2460002674946705 3.6856e-08  
a 3.137659849525057 1.8245e-08 au
q 2.365794687234605 1.1963e-07 au
i 15.80357507614878 4.1557e-06 deg
node 353.4601558120771 1.5387e-05 deg
peri 84.38000693152368 2.1113e-05 deg
M 348.4945988903791 1.0039e-05 deg
tp 2459265.379348570828
(2021-Feb-19.87934857)
5.6504e-05 TDB
period 2030.052256584702
5.56
1.7707e-05
4.848e-08
d
yr
n .1773353364832357 1.5468e-09 deg/d
Q 3.909525011815508 2.2733e-08 au
  Orbit Determination Parameters
   # obs. used (total)      801  
   data-arc span      9835 days (26.93 yr)  
   first obs. used      1994-03-09  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46652  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:31:04  

Additional Information
 Earth MOID = 1.44212 au 
 Jupiter MOID = 1.76149 au 
 T_jup = 3.107 
[ 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 15.01   n/a E2021B55  
diameter diameter 2.926 km 0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.298   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100198 (1994 EA1)          Discovered 1994-Mar-09 by Vagnozzi, A. at Stroncone
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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-Oct-04 07:08 00:03 Jupiter 1.8565805512962 1.85657963039412 1.85658147221727 4.52728031091737 4.42536017197632 2416026.796885542 2.8599916229499 510.537848698306 30.6086670901689 -87.3166418282735 1307398.25318256 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 15:31:06 2021-Apr-13 15:31
1912-Nov-19 02:13 00:05 Jupiter 1.887308549065 1.887307692222 1.88730940597586 0.616112070536331 n/a 2419725.592204187 4.51088562312996 950.036849386108 34.3543601989353 88.4665091070693 8213357.85891733 F 21 CATAB v2.0f-lin.ifort 2021-Apr-13 15:31:06 2021-Apr-13 15:31
1986-May-26 09:32 < 00:01 Jupiter 1.96363356780461 1.96363271169047 1.96363442392634 5.45270578670477 5.37301508045972 2446576.897458409 0.860502349222999 332.903613080665 32.2851330179493 -85.6991597944432 2604226.96950092 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 15:31:06 2021-Apr-13 15:31
1996-Nov-02 13:40 < 00:01 Jupiter 1.81558819511074 1.8155874789584 1.81558891126452 3.10167735052427 2.94743051271663 2450390.069492937 0.75069783991274 390.489443741943 33.1730287898528 -88.4768696070854 1805539.35463018 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 15:31:06 2021-Apr-13 15:31
2006-Aug-21 15:58 < 00:01 Jupiter 1.96327303727383 1.9632723801504 1.96327369439714 2.47791811894668 2.29721797766578 2453969.165460502 0.600412210095263 768.358352532568 25.4411621163185 -87.8360272331784 1395953.28172644 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 15:31:06 2021-Apr-13 15:31
2080-Jul-15 13:01 00:01 Jupiter 1.78280681879337 1.78280603095356 1.78280760667352 4.30708962732572 4.19533177796902 2480961.042298689 1.47048830735112 736.474843906101 27.3084015646742 -88.3610027682936 1850709.16961083 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 15:31:06 2021-Apr-13 15:31
2090-Sep-02 04:34 00:03 Jupiter 1.90222762590792 1.9022267661456 1.9022284857117 0.657311018406037 n/a 2484661.690495407 3.14284241327825 729.871012476265 34.0438300542511 87.9514931624992 8351470.33029168 F 21 CATAB v2.0f-lin.ifort 2021-Apr-13 15:31:06 2021-Apr-13 15:31
2164-Mar-06 20:32 00:03 Jupiter 1.87997991907145 1.87997789527539 1.87998194297896 5.12841094552821 5.0397918035851 2511510.355797569 3.33401919513498 857.344658088378 47.8070452626803 -84.5099128456276 1588939.58486199 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 15:31:06 2021-Apr-13 15:31
2174-Aug-18 11:21 00:04 Jupiter 1.78563767812779 1.78563651094034 1.78563884532236 3.07713931751747 2.91891768764162 2515326.972814484 4.33668855815878 427.772007626842 91.7261985695596 -83.0433944757489 710164.844872382 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 15:31:06 2021-Apr-13 15:31

Alternate Designations
 1994 EA1 = 2003 SL105 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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