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 ]  
15864 (1996 HQ23)
Classification: Main-belt Asteroid          SPK-ID: 2015864
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1471445671106356 3.9521e-08  
a 2.228743573042098 6.6721e-09 au
q 1.900796064786207 8.9812e-08 au
i 1.106037604668505 3.8599e-06 deg
node 139.2866338840906 0.0002107 deg
peri 266.6891034278218 0.0002111 deg
M 266.1460349382863 1.3667e-05 deg
tp 2459317.339053238081
(2021-Apr-12.83905324)
4.6637e-05 TDB
period 1215.314228767082
3.33
5.4573e-06
1.494e-08
d
yr
n .2962196866280538 1.3302e-09 deg/d
Q 2.556691081297989 7.6538e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1615  
   data-arc span      15667 days (42.89 yr)  
   first obs. used      1977-09-09  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4908  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 01:02:30  

Additional Information
 Earth MOID = .910589 au 
 Jupiter MOID = 2.80666 au 
 T_jup = 3.629 
[ 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 15.2   n/a MPO365443  
diameter diameter 2.637 km 0.619 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.232   0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15864 (1996 HQ23)          Discovered 1996-Apr-20 by Elst, E. W. at La Silla
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1985-Jan-03 13:45 00:01 Iris 0.0245956151869657 0.0245943244798518 0.0245969062939947 2.73664940937261 2.73664932396508 2446069.073047767 1.29293011839252 178.506950233664 22.2863616218457 70.0953304761548 155211.617873396 T 22 CATAB v2.0f-lin.ifort 2020-Aug-25 01:02:42 2020-Aug-25 01:02
2156-Aug-03 18:16 00:12 Thisb 0.0303455032305393 0.0303343156640648 0.0303566936465091 3.07969217228922 3.07969209933119 2508738.260793270 11.6523157454202 725.088739601724 25.6175158755903 -39.7881126712085 113396.55052039 T 22 CATAB v2.0f-lin.ifort 2020-Aug-25 01:02:42 2020-Aug-25 01:02

Alternate Designations
 1996 HQ23 = 1977 RU14 = 1987 SC29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-18 14:26 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin