ASTROSAT CZTI

Data Quality Report

Orbit 20161011_G06_132T01_9000000728_level2

Creation date: 2025-11-07T00:06:20.642837
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/AS1G06_132T01_9000000728cztM0_level2.fits modeM0/AS1G06_132T01_9000000728cztM0_level2_quad_clean.evt
Size (bytes)69,125,76046,699,200
Size65.9 MB 44.5 MB
Events in quadrant A410,193229,190
Events in quadrant B392,105221,197
Events in quadrant C403,212219,776
Events in quadrant D345,114203,034

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156650
B0164820
C0157170
D0165480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01920
C02260
D01960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7678600.781454%
B7589771.014626%
C7699180.233797%
D7570430.568032%

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 16855 9729 0 0 0.00% 0.00%
B 16853 9620 0 0 0.00% 0.00%
C 16855 9723 0 0 0.00% 0.00%
D 16855 9602 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 29 417 10.51 106 99 30.3
A 7 110 361 8.66 106 99 30.3
A 0 30 315 7.14 106 99 30.3
B 2 9 324 9.7 103 98 23.3
B 5 128 295 8.45 103 98 23.3
B 5 225 271 7.42 103 98 23.3
C 12 241 286 6.22 106 99 30.1
C 1 80 273 5.78 106 99 30.1
C 1 65 270 5.68 106 99 30.1
D 11 82 288 7.22 98 89 27.6
D 3 31 266 6.42 98 89 27.6
D 3 14 261 6.24 98 89 27.6

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