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172877 (2005 EL175)
Classification: Main-belt Asteroid          SPK-ID: 2172877
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .145977505336919 6.4532e-08  
a 2.401073424673992 2.176e-08 au
q 2.05057071600931 1.4964e-07 au
i 3.814568721214509 5.8182e-06 deg
node 316.2447688056607 0.00010428 deg
peri 35.09739448244548 0.00010694 deg
M 223.4899063357682 2.8547e-05 deg
tp 2459515.810334378665
(2021-Oct-28.31033438)
0.0001117 TDB
period 1358.959732549995
3.72
1.8474e-05
5.058e-08
d
yr
n .2649085115454338 3.6012e-09 deg/d
Q 2.751576133338674 2.4937e-08 au
  Orbit Determination Parameters
   # obs. used (total)      317  
   data-arc span      7006 days (19.18 yr)  
   first obs. used      1999-10-12  
   last obs. used      2018-12-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57647  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 02:53:29  

Additional Information
 Earth MOID = 1.04593 au 
 Jupiter MOID = 2.66628 au 
 T_jup = 3.508 
[ 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 16.2   n/a MPO454186  
diameter diameter 1.532 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.227   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172877 (2005 EL175)          Discovered 2005-Mar-08 by Spacewatch at Kitt Peak
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

Alternate Designations
 2005 EL175 = 1999 VY45 = 2003 YO71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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