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15991 (1998 YH3)
Classification: Main-belt Asteroid          SPK-ID: 2015991
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07005024392727417 4.1721e-08  
a 2.162310078810278 7.7986e-09 au
q 2.010839730343214 9.3559e-08 au
i 5.258544942754632 4.4608e-06 deg
node 272.090235122169 3.7369e-05 deg
peri 48.95067146669624 4.6809e-05 deg
M 44.72832112993567 2.9584e-05 deg
tp 2458856.203604592645
(2020-Jan-07.70360459)
9.5284e-05 TDB
period 1161.382789122418
3.18
6.283e-06
1.72e-08
d
yr
n .3099753185356128 1.6769e-09 deg/d
Q 2.313780427277341 8.3449e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1760  
   data-arc span      24451 days (66.94 yr)  
   first obs. used      1953-10-12  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47781  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 16:42:02  

Additional Information
 Earth MOID = 1.00184 au 
 Jupiter MOID = 2.85854 au 
 T_jup = 3.687 
[ 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 13.8   n/a MPO324456  
diameter diameter 4.356 km 0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.283   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

15991 (1998 YH3)          Discovered 1998-Dec-17 by Kobayashi, T. at Oizumi
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 YH3 = 1953 TT3 = 1991 RY9 = 1995 WP31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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