ASTROSAT CZTI

Data Quality Report

Orbit 08570

Creation date: 2024-06-27T15:34:24.363377
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/AS1G07_060T01_9000001200_08570cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08570cztM0_level2_quad_clean.evt
Size (bytes)414,671,04079,015,680
Size395.5 MB 75.4 MB
Events in quadrant A2,944,930489,275
Events in quadrant B3,190,118498,849
Events in quadrant C2,886,303488,704
Events in quadrant D3,099,142466,921

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131962
B0137401
C0131441
D0138021

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6437310.481591%
B6437640.994252%
C6437150.233028%
D6437220.341774%

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 8852 6439 0 0 0.00% 0.00%
B 8852 6439 13 13 0.15% 0.20%
C 8852 6439 0 0 0.00% 0.00%
D 8852 6439 12 12 0.14% 0.19%

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 8018 47.1 760 745 154.4
A 0 226 7052 40.85 760 745 154.4
A 12 194 6519 37.4 760 745 154.4
B 10 16 155566 1058.29 765 747 146.3
B 0 214 28493 189.66 765 747 146.3
B 12 111 16711 109.12 765 747 146.3
C 13 61 5678 28.72 739 743 171.9
C 8 222 2996 13.11 739 743 171.9
C 3 202 1746 5.84 739 743 171.9
D 1 52 244452 1290.34 725 710 188.9
D 12 233 54878 286.76 725 710 188.9
D 2 234 19408 98.98 725 710 188.9

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