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 ]  
74785 (1999 RE255)
Classification: Main-belt Asteroid          SPK-ID: 2074785
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05310741679585024 4.0747e-08  
a 2.369418627363145 1.0832e-08 au
q 2.243584924755919 9.7521e-08 au
i 5.934521099148188 4.3602e-06 deg
node 295.8243807942811 3.5351e-05 deg
peri 210.0477868927351 4.9051e-05 deg
M .005074738688186948 3.4488e-05 deg
tp 2458600.481221006663
(2019-Apr-26.98122101)
0.00012762 TDB
period 1332.174524954332
3.65
9.1353e-06
2.501e-08
d
yr
n .2702348628174985 1.8531e-09 deg/d
Q 2.49525232997037 1.1407e-08 au
  Orbit Determination Parameters
   # obs. used (total)      793  
   data-arc span      7149 days (19.57 yr)  
   first obs. used      1999-09-06  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52788  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:46:29  

Additional Information
 Earth MOID = 1.2586 au 
 Jupiter MOID = 2.51797 au 
 T_jup = 3.537 
[ 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 15.6   n/a MPO267935  

74785 (1999 RE255)          Discovered 1999-Sep-06 by CSS at Catalina
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RE255 = 1999 SB26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-07 14:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin