ASTROSAT CZTI

Data Quality Report

Orbit 30333

Creation date: 2024-06-27T20:13:50.229926
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/AS1A10_071T29_9000004358_30333cztM0_level2.evt modeM0/AS1A10_071T29_9000004358_30333cztM0_level2_quad_clean.evt
Size (bytes)711,408,960114,888,960
Size678.5 MB 109.6 MB
Events in quadrant A4,553,656720,658
Events in quadrant B7,129,005719,896
Events in quadrant C4,533,453696,755
Events in quadrant D4,689,430687,095

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01920
B01920
C01920
D01920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0195472
B0286392
C0193832
D0201332

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A94551631.723956%
B94562632.781303%
C94561942.051607%
D94561321.395939%

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 10285 9456 3 3 0.03% 0.03%
B 10286 9457 8 8 0.08% 0.08%
C 10286 9457 0 0 0.00% 0.00%
D 10286 9457 23 23 0.22% 0.24%

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 12 96 39275 164.33 1154 1126 232.1
A 5 203 27793 114.87 1154 1126 232.1
A 8 192 20412 83.08 1154 1126 232.1
B 6 159 2558750 11452.51 1135 1104 223.3
B 6 36 74598 329.09 1135 1104 223.3
B 12 111 28589 123.07 1135 1104 223.3
C 14 238 174663 662.18 1106 1111 262.1
C 3 233 30106 110.63 1106 1111 262.1
C 2 114 21919 79.39 1106 1111 262.1
D 2 250 168351 570.91 1111 1090 293.0
D 8 195 139705 473.13 1111 1090 293.0
D 13 104 72309 243.09 1111 1090 293.0

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