ASTROSAT CZTI

Data Quality Report

Orbit 37059

Creation date: 2024-06-27T21:35:02.998234
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/AS1A09_038T01_9000005276_37059cztM0_level2.evt modeM0/AS1A09_038T01_9000005276_37059cztM0_level2_quad_clean.evt
Size (bytes)236,419,20043,332,480
Size225.5 MB 41.3 MB
Events in quadrant A1,167,911305,450
Events in quadrant B2,276,658272,480
Events in quadrant C1,253,337306,217
Events in quadrant D2,308,295265,922

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A047772
B081581
C049441
D083311

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A223750.223514%
B223760727.134555%
C2237311.385785%
D223739217.523469%

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 4360 2238 3 3 0.07% 0.13%
B 4360 2238 436 436 10.00% 19.48%
C 4360 2238 27 27 0.62% 1.21%
D 4360 2238 307 307 7.04% 13.72%

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 10 83 122547 2204.7 267 262 55.5
A 13 6 3765 63.16 267 262 55.5
A 13 254 3258 54.02 267 262 55.5
B 5 184 1124272 23730.37 238 231 47.4
B 5 172 139521 2940.64 238 231 47.4
B 4 141 21138 441.38 238 231 47.4
C 0 10 108738 1748.64 264 266 62.0
C 15 214 94501 1519.13 264 266 62.0
C 1 23 5066 77.38 264 266 62.0
D 2 250 418147 6880.78 243 236 60.7
D 6 112 377057 6204.25 243 236 60.7
D 12 17 230566 3792.32 243 236 60.7

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