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 ]  
40018 (1998 HH134)
Classification: Main-belt Asteroid          SPK-ID: 2040018
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08206395745451966 2.8883e-08  
a 2.384648748812902 8.9407e-09 au
q 2.188955035346347 6.8178e-08 au
i 6.038885903501285 3.8621e-06 deg
node 125.296699390595 3.4425e-05 deg
peri 318.1233377195146 4.4197e-05 deg
M 105.3758181037033 2.6864e-05 deg
tp 2458606.792659310825
(2019-May-03.29265931)
0.00010027 TDB
period 1345.039547010851
3.68
7.5644e-06
2.071e-08
d
yr
n .2676501228532991 1.5052e-09 deg/d
Q 2.580342462279458 9.6744e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1464  
   data-arc span      8178 days (22.39 yr)  
   first obs. used      1997-12-08  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53207  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:48:04  

Additional Information
 Earth MOID = 1.20938 au 
 Jupiter MOID = 2.56381 au 
 T_jup = 3.524 
[ 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 MPO263680  
diameter diameter 2.693 km 0.244 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.154   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

40018 (1998 HH134)          Discovered 1998-Apr-19 by LINEAR at Socorro
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HH134 = 1999 NK33 = 2000 WY48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-15 06:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin