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 ]  
16942 (1998 HA34)
Classification: Main-belt Asteroid          SPK-ID: 2016942
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1144919807252085 1.2337e-08  
a 3.193826621235061 1.7115e-08 au
q 2.828159085276958 4.6314e-08 au
i 16.13043583407846 8.6689e-07 deg
node 202.7664445928571 1.9564e-06 deg
peri 186.638591113334 9.0735e-06 deg
M 157.1565089180439 1.1725e-05 deg
tp 2458290.387029698333
(2018-Jun-20.88702970)
6.5597e-05 TDB
period 2084.804960127123
5.71
1.6758e-05
4.588e-08
d
yr
n .1726780235490464 1.388e-09 deg/d
Q 3.559494157193163 1.9074e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2263  
   data-arc span      22065 days (60.41 yr)  
   first obs. used      1960-10-17  
   last obs. used      2021-03-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43985  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:47:37  

Additional Information
 Earth MOID = 1.83215 au 
 Jupiter MOID = 1.89263 au 
 T_jup = 3.125 
[ 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 12.58   n/a E2021B10  
diameter diameter 17.639 km 0.209 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 124.319 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.068   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16942 (1998 HA34)          Discovered 1998-Apr-20 by LINEAR at Socorro
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HA34 = 1989 UN5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-16 09:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin