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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1404005085343326 3.8048e-08  
a 2.572030636594285 1.3615e-08 au
q 2.210916227250565 9.7097e-08 au
i 2.595330203704118 5.0158e-06 deg
node 257.4151272712537 0.00013809 deg
peri 215.9723953615339 0.00014043 deg
M 233.084595579046 2.5414e-05 deg
tp 2459531.658908940221
(2021-Nov-13.15890894)
0.00010715 TDB
period 1506.650891520219
4.12
1.1963e-05
3.275e-08
d
yr
n .2389405548598972 1.8972e-09 deg/d
Q 2.933145045938006 1.5526e-08 au
  Orbit Determination Parameters
   # obs. used (total)      870  
   data-arc span      14558 days (39.86 yr)  
   first obs. used      1978-07-08  
   last obs. used      2018-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54525  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 17:52:44  

Additional Information
 Earth MOID = 1.22807 au 
 Jupiter MOID = 2.17088 au 
 T_jup = 3.414 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456041.5 (2012-Apr-24.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1398413864960042 3.7609e-08  
q 2.212218661640471 9.5828e-08 au
tp 2456513.940031427738
(2013-Aug-09.44003143)
0.00010593 TDB
node 257.4959433790081 0.00013816 deg
peri 215.5012856680987 0.00014058 deg
i 2.593645263605308 5.0245e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      870  
   data-arc span      14558 days (39.86 yr)  
   first obs. used      1978-07-08  
   last obs. used      2018-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54525  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 17:52:44  

Additional Information
 Jupiter MOID = 2.17088 au 
 T_jup = 3.414 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.414472716395763E-15 -3.578273099572963E-15 5.398984571670222E-13 1.483197192758429E-15 1.21563098975924E-13 -6.799233513968096E-16
q -3.578273099572963E-15 9.183034018008279E-15 -1.380498211277285E-12 -4.118902305333242E-16 -3.255078429343913E-13 1.751429289597767E-15
tp 5.398984571670222E-13 -1.380498211277285E-12 1.1221137211425E-8 5.819101404840357E-11 2.798723688003904E-9 -4.343143295568595E-12
node 1.483197192758429E-15 -4.118902305333242E-16 5.819101404840357E-11 1.90876910838555E-8 -1.905332519083618E-8 -2.519270035903745E-10
peri 1.21563098975924E-13 -3.255078429343913E-13 2.798723688003904E-9 -1.905332519083618E-8 1.976154194368603E-8 2.505731075395561E-10
i -6.799233513968096E-16 1.751429289597767E-15 -4.343143295568595E-12 -2.519270035903745E-10 2.505731075395561E-10 2.524523917774233E-11

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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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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