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 ]  
100830 (1998 HV9)
Classification: Main-belt Asteroid          SPK-ID: 2100830
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1205398676014546 4.5443e-08  
a 3.051678595668426 1.9994e-08 au
q 2.68382966178436 1.3834e-07 au
i 4.567304575382908 4.5294e-06 deg
node 133.2126198857974 6.9495e-05 deg
peri 324.9643848383901 7.2935e-05 deg
M 149.2648768282316 2.2897e-05 deg
tp 2458193.150203045800
(2018-Mar-15.65020305)
0.00012094 TDB
period 1947.182304903359
5.33
1.9137e-05
5.239e-08
d
yr
n .1848825346725134 1.817e-09 deg/d
Q 3.419527529552491 2.2404e-08 au
  Orbit Determination Parameters
   # obs. used (total)      630  
   data-arc span      9919 days (27.16 yr)  
   first obs. used      1993-05-25  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58042  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:04:01  

Additional Information
 Earth MOID = 1.70228 au 
 Jupiter MOID = 1.73126 au 
 T_jup = 3.221 
[ 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 15.0   n/a MPO474882  
rotation period rot_per 9.00 h n/a LCDB (Rev. 2019-August); 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:
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]

100830 (1998 HV9)          Discovered 1998-Apr-19 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 HV9 = 2001 UA6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-02 01:52 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin