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212102 (2005 EH154)
Classification: Main-belt Asteroid          SPK-ID: 2212102
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .193604936485731 7.378e-08  
a 2.562651921016496 1.8149e-08 au
q 2.066509858613061 1.9665e-07 au
i 12.72637069816028 7.208e-06 deg
node 4.133913888642377 2.5341e-05 deg
peri 177.7162889400976 3.1327e-05 deg
M 257.1844131638032 2.2049e-05 deg
tp 2459428.446339822119
(2021-Aug-01.94633982)
9.5266e-05 TDB
period 1498.41757535663
4.10
1.5918e-05
4.358e-08
d
yr
n .2402534553255747 2.5522e-09 deg/d
Q 3.058793983419932 2.1662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      347  
   data-arc span      6818 days (18.67 yr)  
   first obs. used      2001-03-18  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53492  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 02:41:53  

Additional Information
 Earth MOID = 1.0693 au 
 Jupiter MOID = 1.90061 au 
 T_jup = 3.374 
[ 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 16.2   n/a MPO454522  
diameter diameter 3.548 km 0.804 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212102 (2005 EH154)          Discovered 2005-Mar-08 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ 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
1986-Jun-28 14:30 < 00:01 Jupiter 1.99059187770747 1.99059082481992 1.99059293085415 3.62222694223411 3.50278492458065 2446610.104018629 0.981845747729086 1510.45189799208 24.1312614544203 88.3518162976922 1657920.18704317 T 15 CATAB v2.0f-lin.ifort 2020-Feb-25 02:42:10 2020-Feb-25 02:42
1999-Jan-29 03:00 < 00:01 Jupiter 1.89394029271846 1.89393978315222 1.89394080228695 3.60895227265562 3.48282660407898 2451207.625094124 0.582479950951524 880.53942330724 20.6347250391765 -89.3239458022509 2362735.75738764 T 15 CATAB v2.0f-lin.ifort 2020-Feb-25 02:42:10 2020-Feb-25 02:42
2105-Oct-23 01:23 00:02 Jupiter 1.89634475112611 1.89634418186473 1.89634532045001 3.60690327361781 3.48086627034862 2490190.557707540 2.36166849870724 1336.90160407121 21.8066858878553 -89.3485798311251 1951522.31274021 T 15 CATAB v2.0f-lin.ifort 2020-Feb-25 02:42:10 2020-Feb-25 02:42
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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