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JPL Small-Body Database Browser
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56075 (1998 YV21)
Classification: Main-belt Asteroid          SPK-ID: 2056075
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1248245994921102 3.8909e-08  
a 2.674782727465054 1.3602e-08 au
q 2.340904044780814 1.0292e-07 au
i 12.09827250835046 4.0326e-06 deg
node 296.9634164959901 2.058e-05 deg
peri 280.9594404783771 2.8076e-05 deg
M 145.7795828123667 2.1961e-05 deg
tp 2457953.468544822380
(2017-Jul-18.96854482)
9.6048e-05 TDB
period 1597.832284674253
4.37
1.2188e-05
3.337e-08
d
yr
n .2253052485251244 1.7187e-09 deg/d
Q 3.008661410149293 1.53e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1443  
   data-arc span      10490 days (28.72 yr)  
   first obs. used      1991-03-16  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49463  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 05:40:42  

Additional Information
 Earth MOID = 1.36904 au 
 Jupiter MOID = 2.1551 au 
 T_jup = 3.336 
[ 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 MPO452932  
diameter diameter 4.688 km 0.185 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.266   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56075 (1998 YV21)          Discovered 1998-Dec-26 by Spacewatch at Kitt Peak
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 YV21 = 2001 OA56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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