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56074 (1998 YG18)
Classification: Main-belt Asteroid          SPK-ID: 2056074
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 .1484990241506826 3.4482e-08  
a 2.382674188661109 7.6528e-09 au
q 2.028849396775914 8.1509e-08 au
i 2.631164907144851 4.5507e-06 deg
node 171.0185631691481 7.5629e-05 deg
peri 307.5378890451149 7.7224e-05 deg
M 261.8384891696141 1.4957e-05 deg
tp 2459366.797665204142
(2021-Jun-01.29766520)
5.6327e-05 TDB
period 1343.369293707647
3.68
6.4721e-06
1.772e-08
d
yr
n .2679829006709049 1.2911e-09 deg/d
Q 2.736498980546302 8.7893e-09 au
  Orbit Determination Parameters
   # obs. used (total)      904  
   data-arc span      8010 days (21.93 yr)  
   first obs. used      1998-11-24  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .536  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:01:02  

Additional Information
 Earth MOID = 1.04618 au 
 Jupiter MOID = 2.34454 au 
 T_jup = 3.521 
[ 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 15.9   n/a MPO436175  
diameter diameter 1.613 km 0.265 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.325   0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56074 (1998 YG18)          Discovered 1998-Dec-25 by Spacewatch at Kitt Peak
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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