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120557 (1995 DY3)
Classification: Main-belt Asteroid          SPK-ID: 2120557
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1415916296759101 4.7914e-08  
a 2.461331806507765 1.3341e-08 au
q 2.112827824851179 1.2082e-07 au
i 8.0332471353396 5.6325e-06 deg
node 319.1844098852973 2.6567e-05 deg
peri 41.59556565021001 3.119e-05 deg
M 328.3837837709449 1.5489e-05 deg
tp 2459124.368553220060
(2020-Oct-01.86855322)
6.088e-05 TDB
period 1410.436936417496
3.86
1.1467e-05
3.139e-08
d
yr
n .2552400541313095 2.0752e-09 deg/d
Q 2.809835788164351 1.523e-08 au
  Orbit Determination Parameters
   # obs. used (total)      718  
   data-arc span      9295 days (25.45 yr)  
   first obs. used      1995-02-21  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57508  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:09:47  

Additional Information
 Earth MOID = 1.11606 au 
 Jupiter MOID = 2.64506 au 
 T_jup = 3.462 
[ 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 15.3   n/a MPO436582  
diameter diameter 2.528 km 0.357 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.303   0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120557 (1995 DY3)          Discovered 1995-Feb-21 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 1995 DY3 = 2001 TP20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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