AGILE

 2007-013A

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AGILE (Astrorivelatore Gamma ad Imagini Leggero, Light Gamma-Ray Imaging Astronomical Detector) was developed for ASI using Carlo Gavazzi Space Spa/Milano MITA bus and CGS project management. PSLV to 550 x 550 x 6 deg, mass 352 kg. Perigee was a little low (523 km instead of 550 km).

PSLV modified to carry light payload; no PSOM and 400 kg of prop offloaded from the PS4 stage.

Sensitivity less than EGRET on-axis, but much better off-axis performance. 2.5 sr FOV. GRID has 5' to 20' resolution. The GRID MC (MiniCalorimeter) will also detect bursts in the 0.3-200 MeV range and Super-AGILE will give simultaneous hard X-ray data.

The AGILE (Light Imager for Gamma Astrophysics)

Launched with PSLV Advanced Avionics Module (180 kg) inside the Dual Launch Adapter.

SUPER AGILE 4 x 1D coded masks bibcode NIM-A 581, 728F Feroci et al 2007 45 sources seen to date, mostly XBs, some AGN, 2 GRB

In 2009 the reaction wheel malfunctioned, ending AGILE's ability to point at targets. Following this, AGILE was spun around the sun-pointing axis at 1 degree per second, surveying 70 percent of the sky each day.

AGILE
Date	Time	Event	Orbit
2007 Apr 23	1000	Launch by PSLV C-8	SDSC SLP
		T+0:53 Sep PS1 50 km 1.737 km/s	-6240 x 70? x 6
		T+0:53 PS2 burn 50 km 1.736 km/s
		T+3:23 Fairing sep 116 km 2.95 km/s	-5900? x 130? x 6
		T+4:23 PS2 sep 147 km 4.743 km/s
		T+4:24 HPS3 burn 148 km 4.7842 km/s	-4900? x 150? x 6
	1008	T+8:38 HPS3 burnout 283 km 7.581 km/s	-450? x 510 x 6
	1017	T+17:13 PS4 burn 508 km 7.317 km/s	-450? x 510 x 6
	1022	T+22:11 PS4 burnout 550 km 7.583 km/s
	1022	T+22:53 PS4 sep from Agile
2007 Apr 24			95.40 523 x 552 x 2.5
2009 Oct 18		Reaction wheel failed
2009 Nov 4		Spinning mode
2014 Mar 14		Mission restarted

Payload:

• GRID Gamma-ray Imaging Detector 30 MeV-50 GeV detector using a Si/W tracker, CsI mini-calorimeter (GRID-MC) and anticoincidence system.

• GRID-MC CsI mini-calorimeter 0.3-200 MeV

• Super-AGILE Hard X-ray detector 15-45 keV, FOV 0.8sr, 3' res