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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1515911204793985 3.0656e-08  
a 3.237588851978495 1.6503e-08 au
q 2.746799130255465 9.9411e-08 au
i .1625680226007464 3.4243e-06 deg
node 78.65252985249893 0.0012171 deg
peri 273.4409614823144 0.0012171 deg
M 98.29962263100626 1.1474e-05 deg
tp 2458815.494396898677
(2019-Nov-27.99439690)
6.8666e-05 TDB
period 2127.800814674757
5.83
1.6269e-05
4.454e-08
d
yr
n .1691887687593669 1.2936e-09 deg/d
Q 3.728378573701524 1.9004e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1748  
   data-arc span      17352 days (47.51 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50973  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:25:03  

Additional Information
 Earth MOID = 1.74048 au 
 Jupiter MOID = 1.70623 au 
 T_jup = 3.167 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457385.5 (2015-Dec-29.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1573276074674293 3.1808e-08  
q 2.723971809387331 1.0407e-07 au
tp 2456674.975131918611
(2014-Jan-17.47513192)
6.667e-05 TDB
node 74.37746722071553 0.0011666 deg
peri 275.7650664121402 0.0011667 deg
i .1705175826191182 3.4115e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1748  
   data-arc span      17352 days (47.51 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50973  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:25:03  

Additional Information
 Jupiter MOID = 1.70623 au 
 T_jup = 3.167 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.011726077019699E-15 -3.2826795524083E-15 -2.465956925454128E-13 4.279354700832332E-15 -7.489731588168201E-14 -4.806560205594689E-17
q -3.2826795524083E-15 1.08306438072873E-14 4.757286529700404E-13 -4.848396427877219E-14 2.325527822603893E-13 5.24336449695731E-17
tp -2.465956925454128E-13 4.757286529700404E-13 4.444869314946878E-9 -8.564196683690851E-11 8.928660686784225E-10 -4.389796709595578E-13
node 4.279354700832332E-15 -4.848396427877219E-14 -8.564196683690851E-11 1.361047154337454E-6 -1.361054021657488E-6 -2.089210205622843E-11
peri -7.489731588168201E-14 2.325527822603893E-13 8.928660686784225E-10 -1.361054021657488E-6 1.361215620142078E-6 2.084439904741527E-11
i -4.806560205594689E-17 5.24336449695731E-17 -4.389796709595578E-13 -2.089210205622843E-11 2.084439904741527E-11 1.163810466677916E-11

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 13.94   n/a MPCxxxxx  
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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