ASTROSAT CZTI

Data Quality Report

Orbit 47537

Creation date: 2024-10-15T19:08:33.261512
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/AS1C09_002T01_9000006334_47537cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47537cztM0_level2_quad_clean.evt
Size (bytes)551,638,080119,557,440
Size526.1 MB 114.0 MB
Events in quadrant A7,392,703794,762
Events in quadrant B3,849,715822,055
Events in quadrant C3,209,574792,156
Events in quadrant D5,386,921689,359

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0282511604
B017492580
C015811542
D022072760

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01546
B01542
C01544
D01542

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74512283.059992%
B7519600.797978%
C7509120.159808%
D74934886.512745%

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 7539 7498 16 16 0.21% 0.21%
B 7639 7560 22 22 0.29% 0.29%
C 7670 7558 1 1 0.01% 0.01%
D 7667 7553 402 402 5.24% 5.32%

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 3888635 22771.41 814 795 170.7
A 9 191 331314 1935.88 814 795 170.7
A 13 248 15313 85.03 814 795 170.7
B 0 200 293124 1833.21 823 798 159.5
B 0 198 187327 1169.74 823 798 159.5
B 5 32 57908 358.14 823 798 159.5
C 14 254 26547 136.14 809 812 189.0
C 12 250 16795 84.55 809 812 189.0
C 3 233 11024 54.02 809 812 189.0
D 2 249 1122261 5686.17 784 755 197.2
D 7 55 412407 2087.13 784 755 197.2
D 4 222 375060 1897.77 784 755 197.2

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