ASTROSAT CZTI

Data Quality Report

Orbit 20160621_G05_213T01_9000000506_level2

Creation date: 2025-10-31T00:57:40.631399
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

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/AS1G05_213T01_9000000506cztM0_level2.fits modeM0/AS1G05_213T01_9000000506cztM0_level2_quad_clean.evt
Size (bytes)57,306,24050,613,120
Size54.7 MB 48.3 MB
Events in quadrant A336,784283,424
Events in quadrant B335,132286,080
Events in quadrant C335,388272,230
Events in quadrant D288,026249,753

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148110
B0142530
C0127290
D0140710

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63102103.328051%
B6310210.332805%
C631040.063391%
D6310661.045959%

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 7459 6280 0 0 0.00% 0.00%
B 7459 6309 0 0 0.00% 0.00%
C 7459 6309 0 0 0.00% 0.00%
D 7459 6309 0 0 0.00% 0.00%

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 29 377 12.01 87 82 24.6
A 7 110 302 8.96 87 82 24.6
A 0 28 273 7.78 87 82 24.6
B 2 9 282 9.88 88 84 20.0
B 12 226 258 8.68 88 84 20.0
B 5 128 248 8.19 88 84 20.0
C 7 111 236 6.14 88 82 25.1
C 2 17 222 5.58 88 82 25.1
C 2 191 220 5.5 88 82 25.1
D 11 82 271 8.31 81 74 23.7
D 3 14 252 7.51 81 74 23.7
D 1 19 228 6.49 81 74 23.7

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