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 ]  
91121 (1998 HS105)
Classification: Main-belt Asteroid          SPK-ID: 2091121
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1494964047512209 4.4012e-08  
a 2.727848175886186 1.9432e-08 au
q 2.320044680884025 1.2296e-07 au
i 12.45919223521187 4.3135e-06 deg
node 62.43846542461591 2.4981e-05 deg
peri 250.4296307401606 2.9739e-05 deg
M 234.9316565034856 1.869e-05 deg
tp 2459572.207140480667
(2021-Dec-23.70714048)
8.7125e-05 TDB
period 1645.616826921322
4.51
1.7584e-05
4.814e-08
d
yr
n .2187629550880935 2.3376e-09 deg/d
Q 3.135651670888348 2.2337e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1128  
   data-arc span      8071 days (22.10 yr)  
   first obs. used      1998-03-24  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51538  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:37:58  

Additional Information
 Earth MOID = 1.34073 au 
 Jupiter MOID = 2.17801 au 
 T_jup = 3.306 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO320098  
diameter diameter 3.860 km 0.699 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.272   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91121 (1998 HS105)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1998 HS105 = 2000 YK26 = 2002 FO29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-23 03:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin