ASTROSAT CZTI

Data Quality Report

Orbit 20161011_G06_032T02_9000000730_level2

Creation date: 2018-05-17T18:09:12.105708
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G06_032T02_9000000730cztM0_level2.evt modeM0/AS1G06_032T02_9000000730cztM0_level2_quad_clean.evt
Size (bytes)12,868,473,6002,420,254,080
Size12.0 GB 2.3 GB
Events in quadrant A86,851,58215,143,063
Events in quadrant B106,068,49215,342,264
Events in quadrant C89,286,63815,485,204
Events in quadrant D95,098,12014,726,665

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03838420
B04362060
C03919220
D04105310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037740
B037760
C037780
D037730

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02790
B02810
C02790
D02810

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A18416123821.293433%
B18394339132.127289%
C18420717120.929389%
D18400431351.703767%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 220298 186008 254 254 0.12% 0.14%
B 220298 185724 1006 1006 0.46% 0.54%
C 220298 185986 215 215 0.10% 0.12%
D 220298 185841 1352 1352 0.61% 0.73%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 50 804201 176.08 21976 21544 4444.8
A 14 111 609909 132.37 21976 21544 4444.8
A 13 6 230812 47.08 21976 21544 4444.8
B 15 204 9924863 2359.91 22025 21545 4196.5
B 10 16 3579460 847.83 22025 21545 4196.5
B 0 214 2106876 496.92 22025 21545 4196.5
C 1 16 5226134 1063.4 21220 21341 4894.5
C 5 250 687685 136.14 21220 21341 4894.5
C 12 4 242183 45.12 21220 21341 4894.5
D 2 136 2620649 501.64 21183 20543 5183.2
D 12 233 2078676 397.07 21183 20543 5183.2
D 2 152 1863593 355.58 21183 20543 5183.2

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter