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 ]  
12126 (1999 RM11)
Classification: Jupiter Trojan          SPK-ID: 2012126
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2090740714151214 4.9396e-08  
a 5.224013323603693 8.8815e-08 au
q 4.13180758891103 2.6774e-07 au
i 2.044509508955957 5.5631e-06 deg
node 350.9991199714856 0.00013081 deg
peri 304.0190498894438 0.00013173 deg
M 252.7422265316762 2.0856e-05 deg
tp 2459899.864859323898
(2022-Nov-16.36485932)
0.00027228 TDB
period 4361.188324450436
11.94
0.00011122
3.045e-07
d
yr
n .08254630922074765 2.1051e-09 deg/d
Q 6.316219058296357 1.0738e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1917  
   data-arc span      41878 days (114.66 yr)  
   first obs. used      1904-09-13  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48827  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:59:59  

Additional Information
 Earth MOID = 3.11569 au 
 Jupiter MOID = .15526 au 
 T_jup = 2.954 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.1   n/a MPO449030  
diameter diameter 53.202 km 0.470 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.045   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

12126 (1999 RM11)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RM11 = 1975 RX1 = 1978 VH6 = 1985 JP1 = 1987 SK15 = 1988 RU8 = 1996 HJ22 = A904 RD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin