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15187 (2112 T-2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2015187
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1513899326877927 3.5329e-08  
a 3.23585221951513 1.8118e-08 au
q 2.745976769815091 1.1773e-07 au
i .1624238129217763 3.4372e-06 deg
node 78.65151980824055 0.0014367 deg
peri 273.2695987909783 0.0014367 deg
M 31.45516749299452 1.1592e-05 deg
tp 2458814.731982190781
(2019-Nov-27.23198219)
6.8762e-05 TDB
period 2126.089025792442
5.82
1.7857e-05
4.889e-08
d
yr
n .1693249885741824 1.4221e-09 deg/d
Q 3.725727669215171 2.0861e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1528  
   data-arc span      17169 days (47.01 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52671  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 16:39:53  

Additional Information
 Earth MOID = 1.74044 au 
 Jupiter MOID = 1.70755 au 
 T_jup = 3.167 
[ 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 13.9   n/a MPO502285  
diameter diameter 7.783 km 0.413 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.097   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15187 (2112 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20000523/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2112 T-2 = 1996 RP17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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