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71215 (1999 XY261)
Classification: Main-belt Asteroid          SPK-ID: 2071215
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1453794160680982 4.917e-08  
a 2.59832332716123 1.7074e-08 au
q 2.220580599102412 1.3048e-07 au
i 27.27972042412037 5.3256e-06 deg
node 234.0043876392536 1.1899e-05 deg
peri 90.18391098697002 2.8254e-05 deg
M 340.5074561648124 2.0953e-05 deg
tp 2458683.333160874604
(2019-Jul-18.83316087)
8.8745e-05 TDB
period 1529.812535859328
4.19
1.5079e-05
4.128e-08
d
yr
n .2353229507285874 2.3195e-09 deg/d
Q 2.976066055220048 1.9556e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1245  
   data-arc span      7230 days (19.79 yr)  
   first obs. used      1999-12-03  
   last obs. used      2019-09-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47669  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:39:50  

Additional Information
 Earth MOID = 1.38369 au 
 Jupiter MOID = 2.4376 au 
 T_jup = 3.245 
[ 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 13.9   n/a MPO359240  
diameter diameter 10.830 km 0.133 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71215 (1999 XY261)          Discovered 1999-Dec-03 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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