ASTROSAT CZTI

Data Quality Report

Orbit 19429

Creation date: 2024-06-27T18:02:50.686281
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/AS1A05_221T01_9000002888_19429cztM0_level2.evt modeM0/AS1A05_221T01_9000002888_19429cztM0_level2_quad_clean.evt
Size (bytes)607,720,32093,824,640
Size579.6 MB 89.5 MB
Events in quadrant A3,936,524580,120
Events in quadrant B4,130,329587,656
Events in quadrant C4,172,216569,246
Events in quadrant D5,623,222547,819

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168152
B0173382
C0172722
D0221693

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7996811.013007%
B79961591.988494%
C79961972.463732%
D79954085.103189%

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 8896 7998 0 0 0.00% 0.00%
B 8896 7997 20 20 0.22% 0.25%
C 8896 7998 29 29 0.33% 0.36%
D 8895 7996 280 280 3.15% 3.50%

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 3 1 36250 173.61 999 976 203.2
A 9 143 18296 85.24 999 976 203.2
A 12 96 16848 78.12 999 976 203.2
B 7 220 88431 457.2 997 972 191.3
B 0 198 42119 215.1 997 972 191.3
B 0 190 26507 133.49 997 972 191.3
C 9 221 262243 1150.17 956 960 227.2
C 14 238 147072 643.18 956 960 227.2
C 3 233 25470 107.89 956 960 227.2
D 7 238 1198421 5098.66 958 928 234.9
D 12 218 545145 2317.16 958 928 234.9
D 1 52 147521 624.16 958 928 234.9

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