ASTROSAT CZTI

Data Quality Report

Orbit 47228

Creation date: 2024-06-27T23:33:08.167668
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/AS1C09_005T01_9000006304_47228cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47228cztM0_level2_quad_clean.evt
Size (bytes)464,973,120109,117,440
Size443.4 MB 104.1 MB
Events in quadrant A7,526,373704,726
Events in quadrant B3,504,429756,814
Events in quadrant C2,832,070736,740
Events in quadrant D2,861,679668,382

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0268411
B0146671
C0127561
D0130541

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62774497.153099%
B62771402.230365%
C6277200.318624%
D6278260.414145%

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 7502 6278 254 254 3.39% 4.05%
B 7502 6277 23 23 0.31% 0.37%
C 7502 6278 0 0 0.00% 0.00%
D 7503 6278 7 7 0.09% 0.11%

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 10 83 3256132 22854.17 700 686 142.4
A 9 191 1534300 10766.41 700 686 142.4
A 7 3 26521 181.37 700 686 142.4
B 15 201 277178 2030.15 712 690 136.2
B 0 200 156478 1143.89 712 690 136.2
B 0 190 110955 809.63 712 690 136.2
C 14 254 14276 81.22 720 724 166.9
C 14 67 6073 32.06 720 724 166.9
C 13 61 4706 23.87 720 724 166.9
D 2 249 63865 360.24 710 688 175.4
D 1 47 43532 244.3 710 688 175.4
D 2 234 28139 156.53 710 688 175.4

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