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27378 (2000 EG55)
Classification: Main-belt Asteroid          SPK-ID: 2027378
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1122730726423275 4.4772e-08  
a 3.17390707454089 1.8809e-08 au
q 2.817562775000963 1.4219e-07 au
i 9.864172521123848 5.0246e-06 deg
node 58.56289601056157 2.2832e-05 deg
peri 174.3488706686397 2.9554e-05 deg
M 181.1414471069374 2.1226e-05 deg
tp 2460026.617158355173
(2023-Mar-23.11715836)
0.00012614 TDB
period 2065.331352807733
5.65
1.8359e-05
5.026e-08
d
yr
n .1743061710221921 1.5494e-09 deg/d
Q 3.530251374080816 2.0921e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1425  
   data-arc span      10586 days (28.98 yr)  
   first obs. used      1991-11-01  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52923  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:23:34  

Additional Information
 Earth MOID = 1.80661 au 
 Jupiter MOID = 1.46668 au 
 T_jup = 3.169 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456930.5 (2014-Sep-30.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1143509451309664 4.4193e-08  
q 2.808437990836951 1.4038e-07 au
tp 2455903.842411462856
(2011-Dec-08.34241146)
0.00011196 TDB
node 58.65668531583774 2.2873e-05 deg
peri 175.290173134682 2.9573e-05 deg
i 9.859389907314888 5.0212e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1425  
   data-arc span      10586 days (28.98 yr)  
   first obs. used      1991-11-01  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52923  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:23:34  

Additional Information
 Jupiter MOID = 1.46668 au 
 T_jup = 3.169 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.953062709242223E-15 -6.160422908758081E-15 -1.227540837051287E-12 2.771285804919252E-16 -1.983681946413721E-13 1.312412915838453E-16
q -6.160422908758081E-15 1.970558333721478E-14 4.307428502193548E-12 -2.022775782514073E-15 7.196862612590436E-13 2.728717551061561E-16
tp -1.227540837051287E-12 4.307428502193548E-12 1.25349493451175E-8 -9.812768344068755E-12 2.113440558982946E-9 2.078861889659396E-12
node 2.771285804919252E-16 -2.022775782514073E-15 -9.812768344068755E-12 5.23158955964113E-10 -5.169051470280092E-10 -3.015130755575183E-11
peri -1.983681946413721E-13 7.196862612590436E-13 2.113440558982946E-9 -5.169051470280092E-10 8.745409250948258E-10 3.00456736408529E-11
i 1.312412915838453E-16 2.728717551061561E-16 2.078861889659396E-12 -3.015130755575183E-11 3.00456736408529E-11 2.521256620496469E-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 13.5   n/a MPO358885  
diameter diameter 8.988 km 0.459 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.105   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27378 (2000 EG55)          Discovered 2000-Mar-10 by Spacewatch at Kitt Peak
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

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