Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
9442 (1997 GQ27)
Classification: Main-belt Asteroid          SPK-ID: 2009442
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1884826121668625 7.1356e-08  
a 2.5927741813507 2.0201e-08 au
q 2.104081330890922 1.9214e-07 au
i 14.12551015181299 5.1557e-06 deg
node 112.831201639584 2.7801e-05 deg
peri 270.7191305801881 3.1138e-05 deg
M 9.970360735416813 1.3032e-05 deg
tp 2457358.266814702933
(2015-Dec-01.76681470)
5.5206e-05 JED
period 1524.914404845612
4.17
1.7822e-05
4.879e-08
d
yr
n .2360788243956864 2.759e-09 deg/d
Q 3.081467031810479 2.4009e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1152  
   data-arc span      9210 days (25.22 yr)  
   first obs. used      1990-09-26  
   last obs. used      2015-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50075  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:10:37  

Additional Information
 Earth MOID = 1.16184 au 
 Jupiter MOID = 2.52862 au 
 T_jup = 3.351 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7 mag n/a MPO358722  

9442 (1997 GQ27)          Discovered 1997-Apr-02 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 19981005/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 GQ27 = 1990 SA21 = 1995 YU25 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Feb-06 20:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin