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 ]  
129831 (1999 RQ7)
Classification: Main-belt Asteroid          SPK-ID: 2129831
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1563628165188567 8.5021e-08  
a 2.547977419553284 1.4246e-08 au
q 2.149568493805484 2.2293e-07 au
i 2.99806815545496 6.2056e-06 deg
node 23.38199303667912 0.00014161 deg
peri 262.389730426886 0.00014798 deg
M 92.46937609993125 3.9081e-05 deg
tp 2458618.918583469921
(2019-May-15.41858347)
0.00016305 TDB
period 1485.56544603885
4.07
1.2459e-05
3.411e-08
d
yr
n .2423319692578427 2.0324e-09 deg/d
Q 2.946386345301085 1.6474e-08 au
  Orbit Determination Parameters
   # obs. used (total)      474  
   data-arc span      10579 days (28.96 yr)  
   first obs. used      1991-10-11  
   last obs. used      2020-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58433  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:46:00  

Additional Information
 Earth MOID = 1.13573 au 
 Jupiter MOID = 2.21225 au 
 T_jup = 3.423 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456965.5 (2014-Nov-04.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1563036745187968 8.5702e-08  
q 2.14978065839396 2.2525e-07 au
tp 2457134.830500268085
(2015-Apr-22.33050027)
0.00017053 TDB
node 23.4201188741161 0.00014146 deg
peri 262.7869984398909 0.00014781 deg
i 3.000143259172113 6.2087e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      474  
   data-arc span      10579 days (28.96 yr)  
   first obs. used      1991-10-11  
   last obs. used      2020-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58433  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:46:00  

Additional Information
 Jupiter MOID = 2.21225 au 
 T_jup = 3.423 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.344911431491881E-15 -1.928325321478378E-14 1.297329190269021E-11 3.200731672578137E-13 3.231493083314379E-12 -3.301176489665827E-14
q -1.928325321478378E-14 5.073653762060414E-14 -3.441322877184299E-11 -8.496071670878169E-13 -8.57792267545376E-12 8.743471661629171E-14
tp 1.297329190269021E-11 -3.441322877184299E-11 2.908054968371639E-8 6.463176880877392E-10 7.40814506086829E-9 -6.579662659447841E-11
node 3.200731672578137E-13 -8.496071670878169E-13 6.463176880877392E-10 2.00119979122527E-8 -1.980811851736586E-8 -6.590985236948164E-10
peri 3.231493083314379E-12 -8.57792267545376E-12 7.40814506086829E-9 -1.980811851736586E-8 2.184663632045567E-8 6.4018483499688E-10
i -3.301176489665827E-14 8.743471661629171E-14 -6.579662659447841E-11 -6.590985236948164E-10 6.4018483499688E-10 3.854786285926011E-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 16.3   n/a MPO436629  

129831 (1999 RQ7)          Discovered 1999-Sep-03 by Spacewatch at Kitt Peak
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

Alternate Designations
 1999 RQ7 = 2002 GH122 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-24 07:44 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin