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2685 Masursky (1981 JN)
Classification: Main-belt Asteroid          SPK-ID: 2002685
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 86 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1107689235689635 3.2797e-08  
a 2.568556531340393 1.0934e-08 au
q 2.284040289237787 8.3022e-08 au
i 12.12475231208207 3.3489e-06 deg
node 215.3423383138664 1.6832e-05 deg
peri 288.2776429883975 2.3893e-05 deg
M 150.8353142946187 1.8919e-05 deg
tp 2457970.511456902744
(2017-Aug-05.01145690)
7.796e-05 TDB
period 1503.599316749018
4.12
9.6005e-06
2.628e-08
d
yr
n .2394254878875364 1.5287e-09 deg/d
Q 2.853072773442999 1.2145e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2345  
   data-arc span      16892 days (46.25 yr)  
   first obs. used      1973-08-28  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42498  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:38:28  

Additional Information
 Earth MOID = 1.32806 au 
 Jupiter MOID = 2.24066 au 
 T_jup = 3.391 
[ 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 12.1   n/a MPO395019  
diameter diameter 10.744 km 0.170 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.114   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2685 Masursky (1981 JN)          Discovered 1981-May-03 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1981 JN = 1950 VO = 1973 QF = 1975 XJ5 = 1977 KU 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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