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19105 (1981 EB15)
Classification: Main-belt Asteroid          SPK-ID: 2019105
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1404005311101877 3.6867e-08  
a 2.572030627943033 1.2752e-08 au
q 2.210916161748162 9.4901e-08 au
i 2.59533107650177 4.7385e-06 deg
node 257.4152035736006 0.00013544 deg
peri 215.9723272686975 0.00013765 deg
M 233.0845942520891 2.4847e-05 deg
tp 2459531.658911813823
(2021-Nov-13.15891181)
0.00010494 TDB
period 1506.650883918589
4.12
1.1205e-05
3.068e-08
d
yr
n .2389405560654437 1.777e-09 deg/d
Q 2.933145094137904 1.4543e-08 au
  Orbit Determination Parameters
   # obs. used (total)      897  
   data-arc span      15361 days (42.06 yr)  
   first obs. used      1978-07-08  
   last obs. used      2020-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .552  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:24:37  

Additional Information
 Earth MOID = 1.22807 au 
 Jupiter MOID = 2.17088 au 
 T_jup = 3.414 
[ 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 MPO435876  
diameter diameter 2.750 km 0.566 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.338   0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19105 (1981 EB15)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

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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
1924-Apr-22 19:52 00:02 Iris 0.0458383945628573 0.0458302840465721 0.0458465055737199 3.75836024937147 3.75836021600231 2423898.327814863 2.2451052196664 469.77064469556 55.4339316442659 30.8850975875386 64681.5628257373 T 18 CATAB v2.0f-lin.ifort 2020-Aug-25 01:24:49 2020-Aug-25 01:24
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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