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 ]  
30815 (1990 QH2)
Classification: Main-belt Asteroid          SPK-ID: 2030815
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1729323936132633 2.8065e-08  
a 2.319222257380198 7.6045e-09 au
q 1.918153601090285 6.4945e-08 au
i 4.549440080587811 3.2517e-06 deg
node 356.3150673729954 4.5513e-05 deg
peri 17.18730328173105 4.6764e-05 deg
M 186.3936941889583 1.1756e-05 deg
tp 2459822.621165951888
(2022-Aug-31.12116595)
4.3458e-05 TDB
period 1290.066156850595
3.53
6.345e-06
1.737e-08
d
yr
n .2790554562557153 1.3725e-09 deg/d
Q 2.720290913670112 8.9196e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1605  
   data-arc span      11172 days (30.59 yr)  
   first obs. used      1990-08-22  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5013  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:31:39  

Additional Information
 Earth MOID = .917563 au 
 Jupiter MOID = 2.74919 au 
 T_jup = 3.555 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.92   n/a E2021B10  

30815 (1990 QH2)          Discovered 1990-Aug-22 by Holt, H. E. at Palomar
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-24 13:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin