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JPL Small-Body Database Browser
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212142 (2005 EN277)
Classification: Main-belt Asteroid          SPK-ID: 2212142
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .155151903295249 1.0499e-07  
a 2.456574160042315 2.703e-08 au
q 2.075432003525822 2.4362e-07 au
i 9.256589793004689 7.5611e-06 deg
node 61.20873695268563 3.6655e-05 deg
peri 163.375015729781 4.1031e-05 deg
M 191.7374166571606 1.5666e-05 deg
tp 2459257.822195968197
(2021-Feb-12.32219597)
6.2812e-05 TDB
period 1406.349444109026
3.85
2.3211e-05
6.355e-08
d
yr
n .2559818980325145 4.2248e-09 deg/d
Q 2.837716316558807 3.1223e-08 au
  Orbit Determination Parameters
   # obs. used (total)      256  
   data-arc span      6450 days (17.66 yr)  
   first obs. used      2001-02-16  
   last obs. used      2018-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64674  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 03:51:51  

Additional Information
 Earth MOID = 1.06757 au 
 Jupiter MOID = 2.14886 au 
 T_jup = 3.458 
[ 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 16.5   n/a MPO264515  
diameter diameter 2.964 km 0.872 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212142 (2005 EN277)          Discovered 2005-Mar-09 by CSS at Catalina
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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