Astrosat

 2015-052A

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ISRO X-ray astronomy satellite; simultaneous UV to X continuum. Large X-ray bandwidth, slightly better UV imaging than Galex. Satellite is 1650 kg 40 kg prop (LAXPC is 350 kg?) IRS bus.

UV corr multilambda monitoring of AGN; XRBcyclotron lines and UV survey. Event list data from UVIT with aspect optical monitor from NUV beamsplitter; optical event list MCP detector. Coaligned telescope... UV is more sensitive. X-band station in Bangalore; satellite can store 4 orbits of data. Will do 6 months sky survey covering 30% of sky - galactic poles exposure to 1ks mag 20/21 and then pointed observations afterwards. 27 arcmin FOV.

Astrosat
Date	Time	Event	Orbit
2015 Sep 28	0430	Launch by PSLV-XL	SDSC LP1
		T+0:25 PSOM 5-6 on
		T+1:10 PSOM 1-2 sep
		T+1:10 PSOM 3-4 sep
		T+1:32 PSOM 5-6 sep
		T+1:52 St 1 sep
		T+1:52 St 2 on 65 km 2.3375 km/s
		T+2:49 PLF sep 114 km 2.9829 km/s
	0434	T+4:23 St 2 sep 158 km 5.2899 km/s
		T+4:24 St 3 on, 112s
	0436	T+6:16 St 3 off
	0439	T+9:48 St 3 sep 335 km, 7.5446 km/s
	0446	T+16:57 St 4 on 584 km 7.529 km/s Az 99.5
	0451	T+21:56 St 4 burnout
	0452	T+22:33 ASTROSAT sep
		LAPAN-A2 sep
	0453	T+23:28 NLS-14 (EV-9) sep
	0454	T+24:03 LEMUR-1 sep
	0454	T+24:37 LEMUR-2 sep
	0455	T+25:13 LEMUR-3 sep
	0455	T+25:33 LEMUR-4 sep
	0520?	PS3 reentry over Pacific
2015 Sep 29			97.55 633 x 650 x 6.0

Payload:

• UVIT: (IIA/IUCAA/ISRO/CSA/ ) FUV and NUV/Opt telescopes - 1200-1800 and 1800-2800A plus filters each 38cm dia, 2" res. plus small optical monitor MCP based detectors with CCD readouts.

• LAXPC Large Area Xe PropCtr 1 deg FOV - TIFR Agrwal (more area than PCA at 10-80 keV). 3 counters. The high energy response comes from more Xe column (Xe at high pressure). (TIFR/RRI/Agrawal)

• SXT :CCD on gold coated foil optics 200cm2 at 1 keV - KP Singh plus the Danish 0.2-10 keV. Tech dev for future telescopes. 0.26m dia of outermost mirror. 1.5' PSF. (TIFR/LUX/ISRO//Seeta)

• SSM Scanning Sky Monitor (coded mask and prop counter) 2-10 keV - 10 x 90 deg FOV, 10' res, 1 ms timing (ISAC/IUCAA/)

• CZTI: CdZnTe Imager, 4 coded mask telescopes and CZT arays. 10-150 keV (TIFR/IUCAA/Rao) Each of 4 bays is 16 x 16 cm. FOV 6 deg. 20' or so res