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 ]  
26819 (1987 QH7)
Classification: Main-belt Asteroid          SPK-ID: 2026819
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3247881048446257 5.2787e-08  
a 2.585926996141258 1.4001e-08 au
q 1.746048667797983 1.4297e-07 au
i 4.389688290795744 4.6357e-06 deg
node 4.509157113359583 4.7492e-05 deg
peri 10.54696233068736 4.7833e-05 deg
M 307.5479664341224 7.2561e-06 deg
tp 2459221.800628147359
(2021-Jan-07.30062815)
3.1908e-05 TDB
period 1518.877738705576
4.16
1.2335e-05
3.377e-08
d
yr
n .2370171020524672 1.9249e-09 deg/d
Q 3.425805324484533 1.8548e-08 au
  Orbit Determination Parameters
   # obs. used (total)      953  
   data-arc span      12037 days (32.96 yr)  
   first obs. used      1987-08-23  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48086  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 02:25:30  

Additional Information
 Earth MOID = .747334 au 
 Jupiter MOID = 2.04313 au 
 T_jup = 3.342 
[ 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 14.9   n/a MPO435950  

26819 (1987 QH7)          Discovered 1987-Aug-23 by Helin, E. F. at Palomar
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-29 11:26 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin