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 ]  
74269 (1998 SQ109)
Classification: Main-belt Asteroid          SPK-ID: 2074269
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1902270599551419 4.2824e-08  
a 2.533619460831204 1.0828e-08 au
q 2.051656479752152 1.1104e-07 au
i 5.682652730457855 4.3259e-06 deg
node 247.7035458448021 8.2794e-05 deg
peri 180.6549094498236 8.8122e-05 deg
M 358.7394767373539 3.0789e-05 deg
tp 2458605.657733166375
(2019-May-02.15773317)
0.000126 TDB
period 1473.026317655833
4.03
9.4433e-06
2.585e-08
d
yr
n .2443948188060227 1.5668e-09 deg/d
Q 3.015582441910255 1.2888e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1287  
   data-arc span      7732 days (21.17 yr)  
   first obs. used      1998-09-26  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55715  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:45:43  

Additional Information
 Earth MOID = 1.06553 au 
 Jupiter MOID = 2.28596 au 
 T_jup = 3.417 
[ 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 14.6   n/a MPO302456  
diameter diameter 2.694 km 0.445 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.386   0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74269 (1998 SQ109)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
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-13 21:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin