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JPL Small-Body Database Browser
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19660 Danielsteck (1999 RQ129)
Classification: Main-belt Asteroid          SPK-ID: 2019660
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1077299242469404 3.0043e-08  
a 2.327180156726106 7.889e-09 au
q 2.07647321473302 6.9657e-08 au
i 7.322793122632446 3.8703e-06 deg
node 143.7142355621661 3.0039e-05 deg
peri 324.5102089943596 3.6335e-05 deg
M 176.7935393348164 2.0965e-05 deg
tp 2458363.693739839196
(2018-Sep-02.19373984)
7.4752e-05 TDB
period 1296.711715373993
3.55
6.5936e-06
1.805e-08
d
yr
n .277625316199268 1.4117e-09 deg/d
Q 2.577887098719192 8.7388e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1534  
   data-arc span      10257 days (28.08 yr)  
   first obs. used      1991-04-12  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51908  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:45:24  

Additional Information
 Earth MOID = 1.09767 au 
 Jupiter MOID = 2.51167 au 
 T_jup = 3.555 
[ 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 MPO435882  
diameter diameter 2.846 km 0.588 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.288   0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19660 Danielsteck           Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Daniel D´Andrea Steck (b. 1989) is a finalist in the 2003 Discovery Channel Young Scientist Challenge, a middle school science competition, for his engineering project. He attends the Barbara Bush Middle School, San Antonio, Texas.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20031010/MPCPages.arcLast Updated: 2003-10-10

[ show close-approach data ]
Alternate Designations
 1999 RQ129 = 1998 HK116 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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