Fresnel Diffractive Arrays Imagery Sky observation Targets Presented by Truswin Raksasataya
Agenda Sky validation and its objectives FDAI Gen II configurations FDAI Gen II Estimation First Results Future Targets
Sky observation for Prototype II To test Fresnel Imagery with real astrophysical objects. To validate the performance of Fresnel Imagery with the ground support of 20 meter long focal To test the operation on field usages.
What’s changes Prototype Gen II and Current state Version What’s change But.. Effective area is approximately the same as Prototype 1, Chromatic Correction
Recent Results from Sky observation FDAI No Tilt tip compensation for atmosphere turbulance
Estimation of Fresnel Dynamic Range
First Results from Sky observation Fresnel Imagery version during transferred state: Single Stars Vega : Magnitude: 0
Recent Results from Sky observation Single Star : Deneb Magintude: 1 From FDAI 1.5.1
Recent Results from Sky observation Epsilon Lyr Epsilon 1 AB Magnitude : 1 Separation 2.6 arcsec Epsilon 2 AB Magnitude : 1 Separation 2.3 arcsec
Recent Results from Sky observation STT 433 : (Upsilon Cyg) Mag(Separation,arcsec): 4.4, 10(15”), 9,9(21”) STT 433 C STT 433 B STT 433 A
Recent Results from Sky observation STF 2767 Magnitude: 4.2, 8.7 Separation: 6 arcsec B A
Recent Results from Sky observation Results form Ground validation from FDAI Epsilon Lyr 1 AB Epsilon Lyr 2 AB STT 433 STF 2767
Future Targets High Dynamic Ranges Targets : Binary systems Double Stars: Sirius AB, Procyon AB, AGC 9AB etc. Extended Fields: Solar system objects Mars and its satellites : High Resolution image, separation of its satellites. Pluton and Charon: Challenge!
Future Targets Double Stars Procyon AB SiriusAB BUP 9AB BU 633AB AGC 9AB Xi Peg
Future Targets Solar system objects Mars and its Satellites
Mars magnitude profile
Mars’ Separations
THANK YOU FOR YOU ATTENTION ANY QUESTIONS ARE WELCOME T