ASTROSAT CZTI

Data Quality Report

Orbit 07933

Creation date: 2024-06-27T15:25:42.311213
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/AS1G06_117T01_9000001086_07933cztM0_level2.evt modeM0/AS1G06_117T01_9000001086_07933cztM0_level2_quad_clean.evt
Size (bytes)414,866,88087,649,920
Size395.6 MB 83.6 MB
Events in quadrant A2,928,358548,284
Events in quadrant B3,036,639568,419
Events in quadrant C2,877,259563,172
Events in quadrant D3,285,401526,716

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132363
B0134642
C0131402
D0146102

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6408230.358926%
B6408280.436954%
C6408140.218477%
D64081872.918227%

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 7573 6409 3 3 0.04% 0.05%
B 7573 6409 0 0 0.00% 0.00%
C 7573 6409 0 0 0.00% 0.00%
D 7573 6409 163 163 2.15% 2.54%

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 13 251 27489 175.9 749 732 152.1
A 13 248 14594 91.13 749 732 152.1
A 0 226 6916 40.65 749 732 152.1
B 0 197 29960 202.79 761 741 144.1
B 11 51 17347 115.25 761 741 144.1
B 12 111 15722 103.97 761 741 144.1
C 13 61 5453 27.69 735 737 170.3
C 1 16 3960 18.92 735 737 170.3
C 14 205 3749 17.68 735 737 170.3
D 1 52 474791 2723.95 717 695 174.0
D 5 233 46080 260.76 717 695 174.0
D 13 104 24316 135.72 717 695 174.0

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