ASTROSAT CZTI

Data Quality Report

Orbit 25043

Creation date: 2024-06-27T19:13:09.092509
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/AS1T03_206T01_9000003672_25043cztM0_level2.evt modeM0/AS1T03_206T01_9000003672_25043cztM0_level2_quad_clean.evt
Size (bytes)540,198,72069,145,920
Size515.2 MB 65.9 MB
Events in quadrant A3,449,337421,868
Events in quadrant B3,574,588435,192
Events in quadrant C3,696,456400,209
Events in quadrant D5,196,963380,605

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139442
B0143582
C0151122
D0201302

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6537580.887257%
B65371061.621539%
C65361041.591187%
D65361492.279682%

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 7757 6538 8 8 0.10% 0.12%
B 7757 6538 9 9 0.12% 0.14%
C 7756 6537 0 0 0.00% 0.00%
D 7756 6537 87 87 1.12% 1.33%

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 11 208 69789 400.11 865 848 172.3
A 4 2 43266 246.18 865 848 172.3
A 13 254 10402 55.45 865 848 172.3
B 4 80 109790 676.73 867 849 161.0
B 0 190 29203 176.13 867 849 161.0
B 0 230 22860 136.73 867 849 161.0
C 7 247 322152 1685.11 819 824 190.7
C 14 238 134203 699.47 819 824 190.7
C 3 233 33485 171.28 819 824 190.7
D 8 195 1614369 8115.61 818 795 198.8
D 9 35 148843 744.62 818 795 198.8
D 2 244 104915 523.68 818 795 198.8

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