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277568 (2005 YR172)
Classification: Main-belt Asteroid          SPK-ID: 2277568
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1742946738135135 8.1429e-08  
a 2.55490682806004 2.1363e-08 au
q 2.109600175839397 2.1395e-07 au
i 15.87124300219208 9.2686e-06 deg
node 68.98231178137861 1.7311e-05 deg
peri 26.07468421888861 2.7545e-05 deg
M 104.4141683712042 2.0441e-05 deg
tp 2458167.868676291319
(2018-Feb-18.36867629)
8.2511e-05 TDB
period 1491.629718118578
4.08
1.8709e-05
5.122e-08
d
yr
n .2413467602764546 3.0271e-09 deg/d
Q 3.000213480280683 2.5087e-08 au
  Orbit Determination Parameters
   # obs. used (total)      313  
   data-arc span      6379 days (17.46 yr)  
   first obs. used      2001-12-09  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58535  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:47:05  

Additional Information
 Earth MOID = 1.13559 au 
 Jupiter MOID = 2.28004 au 
 T_jup = 3.364 
[ 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 16.3   n/a MPO386161  
diameter diameter 1.723 km 0.284 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.237   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

277568 (2005 YR172)          Discovered 2005-Dec-23 by LINEAR at Socorro
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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