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 ]  
19474 (1998 HJ80)
Classification: Outer Main-belt Asteroid          SPK-ID: 2019474
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07841646468976234 3.353e-08  
a 3.234424451261348 1.9381e-08 au
q 2.980792320487308 1.0938e-07 au
i 5.507315579269308 4.6931e-06 deg
node 22.13763867240286 4.2213e-05 deg
peri 251.8841687286772 5.4758e-05 deg
M 268.9825934249751 3.7144e-05 deg
tp 2459737.675132949435
(2022-Jun-07.17513295)
0.00022097 TDB
period 2124.682026645008
5.82
1.9097e-05
5.228e-08
d
yr
n .1694371183477559 1.5229e-09 deg/d
Q 3.488056582035387 2.09e-08 au
  Orbit Determination Parameters
   # obs. used (total)      925  
   data-arc span      10569 days (28.94 yr)  
   first obs. used      1992-04-07  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56381  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:54:29  

Additional Information
 Earth MOID = 1.96907 au 
 Jupiter MOID = 1.61387 au 
 T_jup = 3.173 
[ 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 14.25   n/a E2021B10  

19474 (1998 HJ80)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HJ80 = 1994 TO5 
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-19 01:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin