ASTROSAT CZTI

Data Quality Report

Orbit 04143

Creation date: 2024-06-27T14:38:00.405412
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_240T01_9000000536_04143cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04143cztM0_level2_quad_clean.evt
Size (bytes)474,727,68075,801,600
Size452.7 MB 72.3 MB
Events in quadrant A3,347,789454,578
Events in quadrant B3,684,553453,918
Events in quadrant C3,268,201446,947
Events in quadrant D3,580,670431,801

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151293
B0158322
C0149392
D0160092

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7296680.932018%
B7296911.247259%
C7296370.507127%
D7296831.137610%

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 7726 7296 3 3 0.04% 0.04%
B 7726 7297 19 19 0.25% 0.26%
C 7726 7296 0 0 0.00% 0.00%
D 7726 7296 72 72 0.93% 0.99%

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 0 118 47542 271.3 841 822 172.2
A 15 234 20299 113.1 841 822 172.2
A 0 226 13848 75.64 841 822 172.2
B 10 16 183196 1105.88 852 832 164.9
B 14 167 110619 665.76 852 832 164.9
B 4 81 38832 230.44 852 832 164.9
C 10 65 43726 223.26 821 824 192.2
C 12 4 15645 77.13 821 824 192.2
C 13 61 6872 31.47 821 824 192.2
D 2 232 286751 1449.02 813 787 197.4
D 12 233 70063 351.03 813 787 197.4
D 10 172 55191 275.67 813 787 197.4

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