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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1939127124142881 7.4642e-08  
a 2.561903168996529 1.8508e-08 au
q 2.065117576553652 1.9885e-07 au
i 12.72908859719763 7.4119e-06 deg
node 4.138614582807785 2.6954e-05 deg
peri 177.7622389458186 3.3274e-05 deg
M 161.006647080927 2.2404e-05 deg
tp 2457930.640380394546
(2017-Jun-26.14038039)
8.7985e-05 TDB
period 1497.760915030758
4.10
1.623e-05
4.444e-08
d
yr
n .2403587891680343 2.6046e-09 deg/d
Q 3.058688761439407 2.2097e-08 au
  Orbit Determination Parameters
   # obs. used (total)      339  
   data-arc span      6799 days (18.61 yr)  
   first obs. used      2001-03-18  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53848  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 23:43:13  

Additional Information
 Earth MOID = 1.06833 au 
 Jupiter MOID = 1.90209 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 1.990591865038 1.99059077690325 1.99059295344817 3.62222550767695 3.5027834403331 2446610.104014430 1.00916381962117 1559.34894189384 25.000253951661 88.347720957985 1603965.3294601 T 13 CATAB v2.0f-lin.ifort 2019-Nov-07 23:43:26 2019-Nov-07 23:43
1999-Jan-29 03:00 < 00:01 Jupiter 1.89394026777075 1.89393975307096 1.89394078247216 3.60895053963424 3.48282480660718 2451207.625104451 0.601167329259891 920.462415145935 20.9837767386784 -89.3673485057996 2333592.0678514 T 13 CATAB v2.0f-lin.ifort 2019-Nov-07 23:43:26 2019-Nov-07 23:43
2105-Oct-23 01:23 00:02 Jupiter 1.89634472836104 1.89634415244302 1.89634530433867 3.60690158353338 3.48086451752829 2490190.557663430 2.41348980267427 1372.98932932146 22.2658533884973 -89.3730270976876 1910140.61574818 T 13 CATAB v2.0f-lin.ifort 2019-Nov-07 23:43:26 2019-Nov-07 23:43
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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