Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
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 ]  
118266 (1998 HQ17)
Classification: Main-belt Asteroid          SPK-ID: 2118266
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1629477203702911 3.3989e-08  
a 3.022456976377988 2.036e-08 au
q 2.529954502159912 1.0408e-07 au
i 5.27544746912736 4.1918e-06 deg
node 286.0968628260879 4.5007e-05 deg
peri 353.5414506916405 4.7662e-05 deg
M 9.87539627240915 1.4009e-05 deg
tp 2458947.850936673135
(2020-Apr-08.35093667)
7.4783e-05 TDB
period 1919.281239440096
5.25
1.9393e-05
5.31e-08
d
yr
n .1875702177472548 1.8953e-09 deg/d
Q 3.514959450596064 2.3678e-08 au
  Orbit Determination Parameters
   # obs. used (total)      745  
   data-arc span      8163 days (22.35 yr)  
   first obs. used      1998-04-01  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5365  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:02:45  

Additional Information
 Earth MOID = 1.51358 au 
 Jupiter MOID = 1.63352 au 
 T_jup = 3.219 
[ 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 MPO436568  
diameter diameter 6.174 km 0.226 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118266 (1998 HQ17)          Discovered 1998-Apr-18 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1998 HQ17 = 1999 NG12 = 2002 AV35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-30 16:50 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin