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 ]  
56918 (2000 QQ230)
Classification: Main-belt Asteroid          SPK-ID: 2056918
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04112019486049294 7.3579e-08  
a 3.108588307197994 3.0336e-08 au
q 2.980762550264963 2.3769e-07 au
i 21.84232341161828 7.6806e-06 deg
node 2.967491703711179 1.54e-05 deg
peri 123.3761766540043 0.00010274 deg
M 84.7067250161865 9.6462e-05 deg
tp 2458529.459086183159
(2019-Feb-14.95908618)
0.00053738 TDB
period 2001.903968565176
5.48
2.9304e-05
8.023e-08
d
yr
n .1798288058033187 2.6324e-09 deg/d
Q 3.236414064131026 3.1583e-08 au
  Orbit Determination Parameters
   # obs. used (total)      739  
   data-arc span      7684 days (21.04 yr)  
   first obs. used      1998-03-25  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49407  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:27:40  

Additional Information
 Earth MOID = 2.02402 au 
 Jupiter MOID = 1.77757 au 
 T_jup = 3.108 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456922.5 (2014-Sep-22.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04267979310738624 7.3275e-08  
q 2.975809325520959 2.3713e-07 au
tp 2456524.346025285173
(2013-Aug-19.84602529)
0.00052304 TDB
node 2.995124326965029 1.5402e-05 deg
peri 122.9933306558209 9.9277e-05 deg
i 21.84284782721011 7.6802e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      739  
   data-arc span      7684 days (21.04 yr)  
   first obs. used      1998-03-25  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49407  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:27:40  

Additional Information
 Jupiter MOID = 1.77757 au 
 T_jup = 3.108 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.369293463344319E-15 -1.725310251504186E-14 2.076068201409851E-11 -1.380444106277661E-14 3.953917823103663E-12 -1.816837099966287E-14
q -1.725310251504186E-14 5.62299728808629E-14 -6.768050696427643E-11 4.72483038131684E-14 -1.286253670871314E-11 6.170257150474228E-14
tp 2.076068201409851E-11 -6.768050696427643E-11 2.735677779229742E-7 -1.210610262419982E-10 5.132995361929989E-8 -5.728235170721496E-12
node -1.380444106277661E-14 4.72483038131684E-14 -1.210610262419982E-10 2.372079299765549E-10 -2.420881283181477E-10 -2.912428872723591E-11
peri 3.953917823103663E-12 -1.286253670871314E-11 5.132995361929989E-8 -2.420881283181477E-10 9.855939467032806E-9 2.588495782462145E-11
i -1.816837099966287E-14 6.170257150474228E-14 -5.728235170721496E-12 -2.912428872723591E-11 2.588495782462145E-11 5.898567052118615E-11

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 14.3   n/a MPO385183  
diameter diameter 9.024 km 0.297 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56918 (2000 QQ230)          Discovered 2000-Aug-31 by LINEAR at Socorro
Reference: 20030318/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 2020-Feb-22 10:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin