ASTROSAT CZTI

Data Quality Report

Orbit 24088

Creation date: 2024-06-27T19:02:00.814372
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_182T01_9000003560_24088cztM0_level2.evt modeM0/AS1T03_182T01_9000003560_24088cztM0_level2_quad_clean.evt
Size (bytes)525,323,52071,789,760
Size501.0 MB 68.5 MB
Events in quadrant A3,317,027439,476
Events in quadrant B3,733,396444,386
Events in quadrant C3,334,474424,842
Events in quadrant D5,085,462413,477

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134501
B0148512
C0134271
D0194851

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64721432.209518%
B64721892.920272%
C64721662.564895%
D64723255.021632%

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 7397 6472 0 0 0.00% 0.00%
B 7397 6472 22 22 0.30% 0.34%
C 7397 6472 0 0 0.00% 0.00%
D 7397 6472 170 170 2.30% 2.63%

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 2 250 38268 217.75 849 832 171.9
A 13 254 10684 57.3 849 832 171.9
A 0 226 7475 38.64 849 832 171.9
B 0 189 279273 1752.99 833 811 158.9
B 0 229 64015 397.88 833 811 158.9
B 15 33 52667 326.45 833 811 158.9
C 14 238 127917 671.98 806 810 189.2
C 7 247 65173 340.27 806 810 189.2
C 13 61 5534 24.97 806 810 189.2
D 1 52 858013 4302.98 817 792 199.2
D 8 195 573700 2875.82 817 792 199.2
D 12 218 270228 1352.49 817 792 199.2

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