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 ]  
70100 (1999 JO121)
Classification: Main-belt Asteroid          SPK-ID: 2070100
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1324388313449569 5.0583e-08  
a 2.288458419737507 1.0952e-08 au
q 1.985377661045945 1.1607e-07 au
i 5.843313362931243 4.7794e-06 deg
node 230.753133158542 5.0807e-05 deg
peri 342.5110391405565 5.3502e-05 deg
M 50.97220752349212 1.8293e-05 deg
tp 2458821.462540151367
(2019-Dec-03.96254015)
6.3949e-05 TDB
period 1264.482914847319
3.46
9.0773e-06
2.485e-08
d
yr
n .2847013556078522 2.0438e-09 deg/d
Q 2.59153917842907 1.2403e-08 au
  Orbit Determination Parameters
   # obs. used (total)      683  
   data-arc span      7732 days (21.17 yr)  
   first obs. used      1999-05-13  
   last obs. used      2020-07-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57372  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:02:07  

Additional Information
 Earth MOID = .97959 au 
 Jupiter MOID = 2.38271 au 
 T_jup = 3.582 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO426418  
diameter diameter 2.177 km 0.240 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.148   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70100 (1999 JO121)          Discovered 1999-May-13 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JO121 = 2000 WR159 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-19 06:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin