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 ]  
49448 Macocha (1998 YJ12)
Classification: Main-belt Asteroid          SPK-ID: 2049448
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2123812085014518 5.451e-08  
a 2.542205799252633 1.2015e-08 au
q 2.00228905934796 1.4061e-07 au
i 9.334882648207962 6.9843e-06 deg
node 45.81954093816404 2.0054e-05 deg
peri 130.8895407253512 2.5531e-05 deg
M 289.256274642271 1.3152e-05 deg
tp 2458891.437638716611
(2020-Feb-11.93763872)
5.4078e-05 TDB
period 1480.520702130894
4.05
1.0495e-05
2.873e-08
d
yr
n .2431576941017148 1.7238e-09 deg/d
Q 3.082122539157307 1.4566e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1340  
   data-arc span      7648 days (20.94 yr)  
   first obs. used      1998-12-17  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50604  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:42:34  

Additional Information
 Earth MOID = 1.01959 au 
 Jupiter MOID = 1.91248 au 
 T_jup = 3.395 
[ 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 14.6   n/a MPO333248  

49448 Macocha           Discovered 1998 Dec. 21 by P. Pravec at Ondřejov.
The Macocha chasm is a part of the cave system created by the lost river Punkva in the Moravian Karst. It is 168 meters deep and was formed in the early Pleistocene era. It is one of the most popular visitor sites in the Czech Republic.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-19 18:52 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin