ASTROSAT CZTI

Data Quality Report

Orbit 33424

Creation date: 2024-06-27T20:48:40.887623
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/AS1A11_046T04_9000004792_33424cztM0_level2.evt modeM0/AS1A11_046T04_9000004792_33424cztM0_level2_quad_clean.evt
Size (bytes)421,194,24082,572,480
Size401.7 MB 78.7 MB
Events in quadrant A2,498,413574,138
Events in quadrant B3,206,251554,159
Events in quadrant C2,400,918553,390
Events in quadrant D4,338,133495,718

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010300431
B013243798
C010158418
D0173851284

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0311
C0310
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0986
B0984
C0984
D0980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A463650.107852%
B45782665.810398%
C4636170.366695%
D45242926.454465%

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 6999 4743 0 0 0.00% 0.00%
B 6999 4703 208 208 2.97% 4.42%
C 6999 4747 19 19 0.27% 0.40%
D 6999 4660 268 268 3.83% 5.75%

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 15 47 314193 2846.97 562 552 110.2
A 13 254 8563 72.72 562 552 110.2
A 13 6 8178 69.22 562 552 110.2
B 5 172 799592 7965.37 537 523 100.3
B 5 255 178963 1778.75 537 523 100.3
B 0 213 37900 372.59 537 523 100.3
C 15 214 206348 1696.99 530 533 121.3
C 0 10 91762 752.21 530 533 121.3
C 14 254 10603 83.03 530 533 121.3
D 8 195 1104184 9019.46 508 494 122.4
D 2 250 538844 4399.45 508 494 122.4
D 1 52 301162 2457.09 508 494 122.4

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