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 ]  
7785 (1994 QW)
Classification: Main-belt Asteroid          SPK-ID: 2007785
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1112770207403539 5.94e-08  
a 2.302383885981879 1.1819e-08 AU
q 2.046181466549217 1.3813e-07 AU
i 8.395956366129528 6.194e-06 deg
node 136.2195719539993 3.8336e-05 deg
peri 215.0902363041397 4.5831e-05 deg
M 280.8563477214765 2.6794e-05 deg
tp 2457281.029552964341
(2015-Sep-15.52955296)
9.5736e-05 JED
period 1276.04218607141
3.49
9.8253e-06
2.69e-08
d
yr
n .2821223341434683 2.1723e-09 deg/d
Q 2.558586305414541 1.3134e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      980  
   data-arc span      10214 days (27.96 yr)  
   first obs. used      1987-09-01  
   last obs. used      2015-08-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50603  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:23:05  

Additional Information
 Earth MOID = 1.04537 AU 
 T_jup = 3.568 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a MPO256921  

7785 (1994 QW)          Discovered 1994-Aug-29 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1994 QW = 1987 RG2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Sep-03 04:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin