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JPL Small-Body Database Browser
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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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07005026325860723 4.4782e-08  
a 2.162310074740173 8.2753e-09 au
q 2.010839684757885 1.0089e-07 au
i 5.258545648772938 4.5651e-06 deg
node 272.0901983207135 3.78e-05 deg
peri 48.95067199177367 4.7229e-05 deg
M 44.72835802872985 3.0022e-05 deg
tp 2458856.203485962212
(2020-Jan-07.70348596)
9.6652e-05 TDB
period 1161.382785843321
3.18
6.667e-06
1.825e-08
d
yr
n .3099753194108101 1.7794e-09 deg/d
Q 2.313780464722461 8.855e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1684  
   data-arc span      24067 days (65.89 yr)  
   first obs. used      1953-10-12  
   last obs. used      2019-09-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47985  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:21:15  

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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