ASTROSAT CZTI

Data Quality Report

Orbit 13099

Creation date: 2024-06-27T16:36:18.223659
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/AS1C03_023T01_9000001930_13099cztM0_level2.evt modeM0/AS1C03_023T01_9000001930_13099cztM0_level2_quad_clean.evt
Size (bytes)529,712,64095,244,480
Size505.2 MB 90.8 MB
Events in quadrant A4,052,498601,984
Events in quadrant B3,953,959626,228
Events in quadrant C3,218,101620,229
Events in quadrant D4,374,152579,518

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160483
B0160172
C0135912
D0174722

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65482373.619426%
B65482183.329261%
C6548270.412340%
D65481031.572999%

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 7829 6550 120 120 1.53% 1.83%
B 7829 6550 90 90 1.15% 1.37%
C 7829 6550 1 1 0.01% 0.02%
D 7829 6550 44 44 0.56% 0.67%

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 15 223 440724 2650.22 822 807 166.0
A 15 239 225175 1351.67 822 807 166.0
A 12 189 86598 516.84 822 807 166.0
B 4 239 201052 1280.33 829 810 156.4
B 0 85 189924 1209.17 829 810 156.4
B 5 32 160857 1023.32 829 810 156.4
C 8 128 6861 32.14 818 825 187.8
C 13 61 5992 27.51 818 825 187.8
C 14 234 5846 26.73 818 825 187.8
D 10 157 1010193 5262.9 805 785 191.8
D 1 52 246598 1281.63 805 785 191.8
D 14 34 32429 164.98 805 785 191.8

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