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15994 (1998 YO8)
Classification: Main-belt Asteroid          SPK-ID: 2015994
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06049631268078753 3.624e-08  
a 2.269990025338816 5.8851e-09 au
q 2.13266399898365 8.1983e-08 au
i 5.053307710280933 3.309e-06 deg
node 143.5367733759729 3.9886e-05 deg
peri 46.66732844109171 4.664e-05 deg
M 81.34664341706488 2.3749e-05 deg
tp 2458918.225603963366
(2020-Mar-09.72560396)
8.2508e-05 TDB
period 1249.206830233767
3.42
4.858e-06
1.33e-08
d
yr
n .2881828623468481 1.1207e-09 deg/d
Q 2.407316051693982 6.2412e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2284  
   data-arc span      15100 days (41.34 yr)  
   first obs. used      1979-04-25  
   last obs. used      2020-08-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49542  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:15:46  

Additional Information
 Earth MOID = 1.13632 au 
 Jupiter MOID = 2.55058 au 
 T_jup = 3.606 
[ 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 14.17   n/a E2021B10  
diameter diameter 3.890 km 0.137 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.321   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15994 (1998 YO8)          Discovered 1998-Dec-23 by Korlevic, K. at Visnjan
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 YO8 = 1979 HC3 = 1982 BN13 = 1989 EK10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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