ASTROSAT CZTI

Data Quality Report

Orbit 23589

Creation date: 2024-06-27T18:56:31.730896
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/AS1A07_054T01_9000003486_23589cztM0_level2.evt modeM0/AS1A07_054T01_9000003486_23589cztM0_level2_quad_clean.evt
Size (bytes)501,295,680125,323,200
Size478.1 MB 119.5 MB
Events in quadrant A3,043,058856,799
Events in quadrant B3,437,659865,675
Events in quadrant C3,245,878829,503
Events in quadrant D5,011,397787,663

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135252
B0147433
C0140992
D0195032

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6534290.443832%
B6533961.469463%
C65331171.790908%
D65333144.806368%

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 7569 6535 0 0 0.00% 0.00%
B 7568 6533 15 15 0.20% 0.23%
C 7568 6533 29 29 0.38% 0.44%
D 7568 6533 231 231 3.05% 3.54%

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 6 16 29997 187.93 780 762 155.6
A 13 254 12366 74.59 780 762 155.6
A 3 137 6733 38.38 780 762 155.6
B 0 189 151255 1033.35 780 761 145.6
B 0 230 83178 565.91 780 761 145.6
B 3 64 78716 535.27 780 761 145.6
C 14 238 119456 679.9 753 758 174.6
C 0 10 79579 451.48 753 758 174.6
C 10 9 48490 273.41 753 758 174.6
D 1 52 1041802 5755.24 748 725 180.9
D 9 85 477111 2633.54 748 725 180.9
D 7 223 422573 2332.04 748 725 180.9

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