Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
16254 Harper (2000 HZ53)
Classification: Main-belt Asteroid          SPK-ID: 2016254
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07075040446291055 7.3636e-08  
a 2.85409264636332 3.0609e-08 AU
q 2.652164437258496 2.115e-07 AU
i 2.432084242661503 8.4508e-06 deg
node 157.2168509879137 0.00014712 deg
peri 171.3317974311048 0.00015722 deg
M 280.2949621108089 5.6437e-05 deg
tp 2457390.427440080484
(2016-Jan-02.92744008)
0.00027908 JED
period 1761.166949373105
4.82
2.8332e-05
7.757e-08
d
yr
n .2044099227095668 3.2884e-09 deg/d
Q 3.056020855468144 3.2775e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      604  
   data-arc span      13381 days (36.64 yr)  
   first obs. used      1977-09-09  
   last obs. used      2014-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54362  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:32:07  

Additional Information
 Earth MOID = 1.64148 AU 
 T_jup = 3.299 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO259458  

16254 Harper           Discovered 2000 Apr. 29 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Named in honor of Dan Harper for mentoring a finalist in the 2002 Intel Science Talent Search, a science competition for high school seniors. Harper is a teacher at the Westlake High School, Austin, Texas.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020227/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 2000 HZ53 = 1977 RT16 = 1996 NC3 = 1997 XD13 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Dec-22 14:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin