ASTROSAT CZTI

Data Quality Report

Orbit 13705

Creation date: 2024-06-27T16:44:53.018447
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/AS1T02_040T01_9000002030_13705cztM0_level2.evt modeM0/AS1T02_040T01_9000002030_13705cztM0_level2_quad_clean.evt
Size (bytes)261,498,24065,496,960
Size249.4 MB 62.5 MB
Events in quadrant A1,590,942443,033
Events in quadrant B1,830,280479,084
Events in quadrant C1,640,804434,368
Events in quadrant D2,632,330393,055

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068631
B075761
C069471
D0100661

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A329290.273390%
B3292381.154313%
C329270.212637%
D32922036.166464%

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 4438 3294 0 0 0.00% 0.00%
B 4438 3294 11 11 0.25% 0.33%
C 4438 3294 0 0 0.00% 0.00%
D 4438 3294 187 187 4.21% 5.68%

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 1 162 5977 65.61 411 403 85.0
A 0 226 3628 37.96 411 403 85.0
A 12 194 3032 30.94 411 403 85.0
B 8 250 116627 1433.87 423 414 81.0
B 3 64 39288 479.64 423 414 81.0
B 0 219 13018 155.51 423 414 81.0
C 3 233 58316 608.72 406 409 95.1
C 13 61 2822 25.37 406 409 95.1
C 3 202 980 6.0 406 409 95.1
D 13 122 1086588 11541.38 388 378 94.1
D 1 52 36774 386.72 388 378 94.1
D 13 249 36008 378.58 388 378 94.1

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