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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
27762 (1991 RD16)
Classification: Main-belt Asteroid          SPK-ID: 2027762
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2006436908485488 3.69e-08  
a 2.217202159486849 6.3754e-09 au
q 1.772334534850035 8.3512e-08 au
i 4.741364464884799 4.4719e-06 deg
node 154.3993564095515 3.8082e-05 deg
peri 217.1264531941982 3.9679e-05 deg
M 239.047442561363 1.1303e-05 deg
tp 2459405.652871271805
(2021-Jul-10.15287127)
3.8895e-05 TDB
period 1205.8863139942
3.30
5.2012e-06
1.424e-08
d
yr
n .2985356047433602 1.2876e-09 deg/d
Q 2.662069784123664 7.6546e-09 au
  Orbit Determination Parameters
   # obs. used (total)      952  
   data-arc span      14033 days (38.42 yr)  
   first obs. used      1981-08-25  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55374  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:09:50  

Additional Information
 Earth MOID = .77464 au 
 Jupiter MOID = 2.80246 au 
 T_jup = 3.621 
[ 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 15.7   n/a MPO263584  

27762 (1991 RD16)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RD16 = 1981 QF3 = 1996 CT4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-02 10:33 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin