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
JPL Small-Body Database Browser
Search: [ help ]  
312974 (1999 CU8)
Classification: Mars-crossing Asteroid          SPK-ID: 2312974
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2846580018124157 6.6936e-08  
a 1.869408943845354 9.3465e-09 au
q 1.337266729320078 1.2878e-07 au
i 29.33597983373247 7.6296e-06 deg
node 109.7174943146665 1.3346e-05 deg
peri 102.4063580433095 2.5608e-05 deg
M 67.92296673854624 1.2839e-05 deg
tp 2458824.355516246226
(2019-Dec-06.85551625)
3.3171e-05 TDB
period 933.5872267689454
2.56
7.0015e-06
1.917e-08
d
yr
n .3856093889008368 2.8919e-09 deg/d
Q 2.401551158370631 1.2007e-08 au
  Orbit Determination Parameters
   # obs. used (total)      375  
   data-arc span      7308 days (20.01 yr)  
   first obs. used      1999-01-06  
   last obs. used      2019-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59403  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:30:53  

Additional Information
 Earth MOID = .515388 au 
 Jupiter MOID = 3.01018 au 
 T_jup = 3.785 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457151.5 (2015-May-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2844927714115226 6.6907e-08  
q 1.337511425004838 1.2865e-07 au
tp 2456957.288451782340
(2014-Oct-26.78845178)
3.4913e-05 TDB
node 109.7436777253155 1.3347e-05 deg
peri 102.3435406743433 2.5625e-05 deg
i 29.33398730458981 7.6291e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      375  
   data-arc span      7308 days (20.01 yr)  
   first obs. used      1999-01-06  
   last obs. used      2019-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59403  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:30:53  

Additional Information
 Jupiter MOID = 3.01018 au 
 T_jup = 3.785 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.476500289677814E-15 -8.598917011047057E-15 3.144503618702476E-13 -3.502318800148619E-14 3.899330075908295E-13 -1.816056809992404E-13
q -8.598917011047057E-15 1.654953784232763E-14 -6.613908816692809E-13 7.565736727124367E-14 -7.884279431191775E-13 3.516753073772616E-13
tp 3.144503618702476E-13 -6.613908816692809E-13 1.218937422878336E-9 -6.708079664552813E-11 7.715251000777747E-10 1.767859875537965E-11
node -3.502318800148619E-14 7.565736727124367E-14 -6.708079664552813E-11 1.7814444266418E-10 -1.975481601444697E-10 1.247715072217707E-13
peri 3.899330075908295E-13 -7.884279431191775E-13 7.715251000777747E-10 -1.975481601444697E-10 6.566520112669663E-10 2.070852951710097E-12
i -1.816056809992404E-13 3.516753073772616E-13 1.767859875537965E-11 1.247715072217707E-13 2.070852951710097E-12 5.820389400756694E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2   n/a MPO402216  

312974 (1999 CU8)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: 20120207/Numbers.arcLast Updated: 2012-02-09

Alternate Designations
 1999 CU8 = 2007 MJ6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-08 06:33 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin