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 ]  
11222 (1999 JR27)
Classification: Main-belt Asteroid          SPK-ID: 2011222
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1162746220625244 2.4901e-08  
a 2.990461667822351 1.3214e-08 au
q 2.642746867603841 7.8799e-08 au
i 9.779283871873332 7.1475e-07 deg
node 213.0193350250319 4.5931e-06 deg
peri 155.9363052951687 1.0571e-05 deg
M 324.8604983935497 1.0594e-05 deg
tp 2459580.873662774943
(2022-Jan-01.37366277)
5.6055e-05 TDB
period 1888.886169825347
5.17
1.252e-05
3.428e-08
d
yr
n .1905885096470832 1.2632e-09 deg/d
Q 3.338176468040861 1.4751e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2083  
   data-arc span      16672 days (45.65 yr)  
   first obs. used      1975-11-02  
   last obs. used      2021-06-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47738  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 02:38:28  

Additional Information
 Earth MOID = 1.64558 au 
 Jupiter MOID = 2.14611 au 
 T_jup = 3.224 
[ 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 13.13   n/a MPO614063  
rotation period rot_per 178.908 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

11222 (1999 JR27)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 19990728/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JR27 = 1975 VB4 = 1985 SN = 1998 DO5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Aug-02 06:46 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin