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 ]  
150821 (2001 RM131)
Classification: Main-belt Asteroid          SPK-ID: 2150821
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .124114116992229 5.1948e-08  
a 2.678180860307385 1.7568e-08 au
q 2.345780807684846 1.3305e-07 au
i 3.660896084318916 4.5081e-06 deg
node 142.7672769977974 7.5864e-05 deg
peri 201.9709480170119 7.8412e-05 deg
M 151.3552758114679 2.1999e-05 deg
tp 2458527.440679149898
(2019-Feb-12.94067915)
9.4516e-05 TDB
period 1600.878160387707
4.38
1.5752e-05
4.313e-08
d
yr
n .2248765764365314 2.2127e-09 deg/d
Q 3.010580912929924 1.9749e-08 au
  Orbit Determination Parameters
   # obs. used (total)      399  
   data-arc span      8096 days (22.17 yr)  
   first obs. used      1999-02-07  
   last obs. used      2021-04-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56795  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:39:50  

Additional Information
 Earth MOID = 1.33676 au 
 Jupiter MOID = 2.37645 au 
 T_jup = 3.364 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457757.5 (2017-Jan-04.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1247444272534317 5.2166e-08  
q 2.344522920119537 1.3374e-07 au
tp 2458523.639953910547
(2019-Feb-09.13995391)
9.4101e-05 TDB
node 142.8644534456375 7.578e-05 deg
peri 201.1035646882251 7.8299e-05 deg
i 3.662409701515531 4.5126e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      399  
   data-arc span      8096 days (22.17 yr)  
   first obs. used      1999-02-07  
   last obs. used      2021-04-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56795  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:39:50  

Additional Information
 Jupiter MOID = 2.37645 au 
 T_jup = 3.364 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.721263683371914E-15 -6.938901810946037E-15 1.945727077515543E-12 -1.631976082885729E-14 3.221390617152412E-13 -1.162632497804494E-15
q -6.938901810946037E-15 1.788704988200067E-14 -4.482503285973647E-12 4.101376040436419E-14 -7.388374242869409E-13 2.968920170922708E-15
tp 1.945727077515543E-12 -4.482503285973647E-12 8.854906237764289E-9 -3.808436908339355E-11 1.871169770856217E-9 -3.408753873599517E-12
node -1.631976082885729E-14 4.101376040436419E-14 -3.808436908339355E-11 5.74262232306602E-9 -5.738037775511237E-9 6.35082330338206E-11
peri 3.221390617152412E-13 -7.388374242869409E-13 1.871169770856217E-9 -5.738037775511237E-9 6.130787058059854E-9 -6.410910369385526E-11
i -1.162632497804494E-15 2.968920170922708E-15 -3.408753873599517E-12 6.35082330338206E-11 -6.410910369385526E-11 2.036361617066402E-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 16.10   n/a MPCxxxxx  

150821 (2001 RM131)          Discovered 2001-Sep-12 by LINEAR at Socorro
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-07 20:29 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin