ASTROSAT CZTI

Data Quality Report

Orbit 05183

Creation date: 2024-06-27T14:52:24.030437
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/AS1G05_214T01_9000000652_05183cztM0_level2.evt modeM0/AS1G05_214T01_9000000652_05183cztM0_level2_quad_clean.evt
Size (bytes)462,398,40060,261,120
Size441.0 MB 57.5 MB
Events in quadrant A3,207,874347,850
Events in quadrant B3,414,227352,776
Events in quadrant C3,035,102351,738
Events in quadrant D3,909,907323,663

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136643
B0140292
C0133022
D0160402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64261031.602863%
B64261281.991908%
C6426671.042639%
D64262323.610333%

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 7541 6427 13 13 0.17% 0.20%
B 7541 6427 10 10 0.13% 0.16%
C 7541 6427 0 0 0.00% 0.00%
D 7541 6427 165 165 2.19% 2.57%

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 0 50 81311 488.24 800 782 164.9
A 13 170 30842 182.25 800 782 164.9
A 0 247 19938 116.14 800 782 164.9
B 4 80 130599 838.05 809 791 154.9
B 15 204 89447 572.37 809 791 154.9
B 4 48 22820 142.22 809 791 154.9
C 1 16 11184 57.68 774 779 180.4
C 13 61 6394 31.12 774 779 180.4
C 12 4 4513 20.7 774 779 180.4
D 2 33 583584 3084.78 761 739 188.9
D 2 136 219230 1156.39 761 739 188.9
D 7 237 164878 868.72 761 739 188.9

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