ASTROSAT CZTI

Data Quality Report

Orbit 03305

Creation date: 2024-06-27T14:27:22.862734
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_241T02_9000000448_03305cztM0_level2.evt modeM0/AS1G05_241T02_9000000448_03305cztM0_level2_quad_clean.evt
Size (bytes)1,166,852,160148,798,080
Size1.1 GB 141.9 MB
Events in quadrant A7,391,454871,818
Events in quadrant B11,075,420858,191
Events in quadrant C7,988,610851,166
Events in quadrant D7,818,722838,135

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0332942
B0437851
C0345951
D0350687

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03180
B03180
C03180
D03180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A157355483.482682%
B157355793.679695%
C157354863.088656%
D157335373.413208%

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 19639 15739 35 35 0.18% 0.22%
B 19639 15739 21 21 0.11% 0.13%
C 19639 15739 83 83 0.42% 0.53%
D 19639 15738 155 155 0.79% 0.98%

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 148634 385.05 1851 1804 381.3
A 0 118 62803 159.96 1851 1804 381.3
A 8 15 28651 70.4 1851 1804 381.3
B 15 204 3286185 9075.57 1862 1816 361.9
B 14 167 319143 876.86 1862 1816 361.9
B 2 249 118381 322.1 1862 1816 361.9
C 1 192 379659 891.36 1804 1811 423.9
C 8 208 296562 695.33 1804 1811 423.9
C 2 53 97574 225.91 1804 1811 423.9
D 13 223 585559 1325.19 1811 1760 440.5
D 12 233 82811 183.98 1811 1760 440.5
D 2 31 76697 170.1 1811 1760 440.5

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