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48397 (1981 EL16)
Classification: Main-belt Asteroid          SPK-ID: 2048397
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1317983581796777 3.6896e-08  
a 2.202927846922837 8.656e-09 au
q 1.912585573510114 8.0628e-08 au
i 7.067815241824627 4.3009e-06 deg
node 334.4042832787086 3.859e-05 deg
peri 344.4967267201865 4.4039e-05 deg
M 107.6185680710068 2.2287e-05 deg
tp 2458243.487399460692
(2018-May-04.98739946)
7.3764e-05 TDB
period 1194.259861452072
3.27
7.039e-06
1.927e-08
d
yr
n .3014419320450781 1.7767e-09 deg/d
Q 2.493270120335559 9.7969e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1073  
   data-arc span      13904 days (38.07 yr)  
   first obs. used      1981-02-12  
   last obs. used      2019-03-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53458  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:46:16  

Additional Information
 Earth MOID = .899945 au 
 Jupiter MOID = 2.78692 au 
 T_jup = 3.642 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO400472  
diameter diameter 3.344 km 0.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.208   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48397 (1981 EL16)          Discovered 1981-Mar-06 by Bus, S. J. at Siding Spring
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EL16 = 1997 EJ40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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