Sunspot Number dan Sunspot Cycle

Joko _ Sunspot Number

VLBI ( VERY LONG BASELINE INTERFEROMETRY )

VLBI

Slr ( satellite laser Ranging)

Slr ( Satelit laser Ranging)

SATELIT ALTIMETRI

SATELIT ALTIMETRI by Joko Purnomo

GNSS ( Global Navigation Satellite System )

makalah gnss by Joko Purnomo

DORIS - Doppler Orbitography and Radiopositioning Integrated by Satellite

Doris by Joko Purnomo