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48418 (1988 EA1)
Classification: Main-belt Asteroid          SPK-ID: 2048418
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2323318787094233 4.1539e-08  
a 2.613144060249203 9.5233e-09 au
q 2.006027391393135 1.0785e-07 au
i 12.82933285713755 3.402e-06 deg
node 165.2389244940845 1.944e-05 deg
peri 84.83276596683194 2.0365e-05 deg
M 173.2627563366532 6.7692e-06 deg
tp 2458257.914996971038
(2018-May-19.41499697)
2.8145e-05 TDB
period 1542.920167857638
4.22
8.4345e-06
2.309e-08
d
yr
n .2333238021639602 1.2755e-09 deg/d
Q 3.220260729105271 1.1736e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1206  
   data-arc span      11580 days (31.70 yr)  
   first obs. used      1988-03-13  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46758  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:34:47  

Additional Information
 Earth MOID = 1.04158 au 
 Jupiter MOID = 1.97762 au 
 T_jup = 3.335 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457002.5 (2014-Dec-11.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2322707403921374 4.1423e-08  
q 2.006191007991764 1.0753e-07 au
tp 2456716.305159457118
(2014-Feb-27.80515946)
2.8357e-05 TDB
node 165.2690085403438 1.9426e-05 deg
peri 84.94461438328192 2.036e-05 deg
i 12.83372568919509 3.4034e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1206  
   data-arc span      11580 days (31.70 yr)  
   first obs. used      1988-03-13  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46758  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:34:47  

Additional Information
 Jupiter MOID = 1.97762 au 
 T_jup = 3.335 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.715897184873279E-15 -4.444069041660494E-15 -9.514017455749413E-14 -2.303889190774928E-14 -4.741317165527368E-14 -8.268577315727381E-15
q -4.444069041660494E-15 1.156294599841352E-14 2.139557907039794E-13 5.968854015027052E-14 1.176787723839626E-13 2.207043163521793E-14
tp -9.514017455749413E-14 2.139557907039794E-13 8.041006089504038E-10 3.094759351071322E-12 1.975642633067959E-10 -1.062712656975611E-12
node -2.303889190774928E-14 5.968854015027052E-14 3.094759351071322E-12 3.773569946028301E-10 -3.665122442757503E-10 1.235636757761538E-11
peri -4.741317165527368E-14 1.176787723839626E-13 1.975642633067959E-10 -3.665122442757503E-10 4.145156555527949E-10 -1.199660987921848E-11
i -8.268577315727381E-15 2.207043163521793E-14 -1.062712656975611E-12 1.235636757761538E-11 -1.199660987921848E-11 1.158316392113399E-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 14.6   n/a MPO347857  
diameter diameter 6.433 km 0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48418 (1988 EA1)          Discovered 1988-Mar-13 by Jensen, P. at Brorfelde
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1988 EA1 = 2000 AH202 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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