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 ]  
101212 (1998 SK51)
Classification: Main-belt Asteroid          SPK-ID: 2101212
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1960600117628523 4.1348e-08  
a 2.626699862017202 1.026e-08 au
q 2.111709056172627 1.0801e-07 au
i 12.25523084383549 3.9047e-06 deg
node 13.63526381426954 1.792e-05 deg
peri 340.66151401 2.0277e-05 deg
M 97.32087492658292 9.2042e-06 deg
tp 2458780.143654556245
(2019-Oct-23.64365456)
3.8952e-05 TDB
period 1554.941675913941
4.26
9.1102e-06
2.494e-08
d
yr
n .2315199377419763 1.3564e-09 deg/d
Q 3.141690667861778 1.2271e-08 au
  Orbit Determination Parameters
   # obs. used (total)      826  
   data-arc span      8195 days (22.44 yr)  
   first obs. used      1998-09-13  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55851  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:35:44  

Additional Information
 Earth MOID = 1.11023 au 
 Jupiter MOID = 2.31651 au 
 T_jup = 3.343 
[ 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 15.8   n/a MPO493568  

101212 (1998 SK51)          Discovered 1998-Sep-27 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 SK51 = 2002 SJ56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-19 22:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin