ASTROSAT CZTI

Data Quality Report

Orbit 32291

Creation date: 2024-06-27T20:38:31.195120
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_131T01_9000004696_32291cztM0_level2.evt modeM0/AS1A09_131T01_9000004696_32291cztM0_level2_quad_clean.evt
Size (bytes)290,157,12037,258,560
Size276.7 MB 35.5 MB
Events in quadrant A1,284,640240,728
Events in quadrant B2,279,266237,100
Events in quadrant C1,578,448236,989
Events in quadrant D3,456,319215,091

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056320
B086760
C064870
D0121590

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A277010.036101%
B2770150.541516%
C2770321.155235%
D277046116.642599%

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 2770 2770 0 0 0.00% 0.00%
B 2770 2770 3 3 0.11% 0.11%
C 2770 2770 7 7 0.25% 0.25%
D 2770 2770 408 408 14.73% 14.73%

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 6 9809 141.06 328 321 67.3
A 13 6 7455 106.06 328 321 67.3
A 13 254 5783 81.2 328 321 67.3
B 6 159 847878 13516.01 326 318 62.7
B 0 190 45591 721.97 326 318 62.7
B 0 229 34114 538.94 326 318 62.7
C 3 233 195599 2551.82 321 323 76.5
C 14 238 51505 668.83 321 323 76.5
C 0 10 41232 534.59 321 323 76.5
D 8 195 947311 13046.1 304 296 72.6
D 7 38 662334 9120.25 304 296 72.6
D 13 249 322439 4437.85 304 296 72.6

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