ASTROSAT CZTI

Data Quality Report

Orbit 19116

Creation date: 2024-06-27T17:59:13.424786
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/AS1T03_098T01_9000002836_19116cztM0_level2.evt modeM0/AS1T03_098T01_9000002836_19116cztM0_level2_quad_clean.evt
Size (bytes)246,263,04017,994,240
Size234.9 MB 17.2 MB
Events in quadrant A1,332,02388,159
Events in quadrant B1,636,54888,527
Events in quadrant C1,367,40386,730
Events in quadrant D2,928,96979,250

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A057110
B067080
C057330
D0105890

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A281850.177431%
B2818521.845280%
C2818140.496806%
D281946616.530685%

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 2818 2818 0 0 0.00% 0.00%
B 2818 2818 24 24 0.85% 0.85%
C 2818 2818 0 0 0.00% 0.00%
D 2819 2819 350 350 12.42% 12.42%

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 15 174 5755 75.8 344 336 71.5
A 0 226 2987 37.08 344 336 71.5
A 12 194 2542 30.86 344 336 71.5
B 7 220 240691 3626.86 340 332 66.3
B 0 197 16295 240.87 340 332 66.3
B 4 216 14838 218.89 340 332 66.3
C 14 238 51517 646.1 331 333 79.2
C 3 233 21131 262.53 331 333 79.2
C 0 207 2396 26.04 331 333 79.2
D 7 238 1196211 15232.4 315 306 78.5
D 11 176 266336 3388.46 315 306 78.5
D 1 52 168463 2141.84 315 306 78.5

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