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15990 (1998 YT1)
Classification: Main-belt Asteroid          SPK-ID: 2015990
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2145411660767768 2.8011e-08  
a 2.354143576910199 5.4007e-09 au
q 1.84908286880773 6.7342e-08 au
i 1.995961056858895 3.4413e-06 deg
node 173.049563600359 7.8541e-05 deg
peri 235.4977861353305 7.8953e-05 deg
M 40.68903153176088 7.2185e-06 deg
tp 2458851.384530968538
(2020-Jan-02.88453097)
2.6349e-05 TDB
period 1319.313014600111
3.61
4.54e-06
1.243e-08
d
yr
n .2728692857692436 9.3899e-10 deg/d
Q 2.859204285012667 6.5594e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1707  
   data-arc span      10752 days (29.44 yr)  
   first obs. used      1990-08-22  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48636  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:32:20  

Additional Information
 Earth MOID = .860036 au 
 Jupiter MOID = 2.52655 au 
 T_jup = 3.523 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO449067  
diameter diameter 2.879 km 0.832 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.370   0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15990 (1998 YT1)          Discovered 1998-Dec-17 by Korlevic, K. at Visnjan
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 YT1 = 1990 QS19 = 1990 RT11 = 1996 FX23 = 1996 GY18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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