ASTROSAT CZTI

Data Quality Report

Orbit 10174

Creation date: 2024-06-27T15:55:56.990630
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/AS1A03_133T01_9000001464_10174cztM0_level2.evt modeM0/AS1A03_133T01_9000001464_10174cztM0_level2_quad_clean.evt
Size (bytes)427,645,440111,908,160
Size407.8 MB 106.7 MB
Events in quadrant A2,969,792760,288
Events in quadrant B3,346,554759,807
Events in quadrant C2,845,098746,312
Events in quadrant D3,393,429715,438

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01249619
B01382030
C01225813
D0137749

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5834741.268426%
B5831971.663523%
C5836631.079507%
D58381232.106886%

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 7122 5842 0 0 0.00% 0.00%
B 7122 5842 14 14 0.20% 0.24%
C 7122 5842 0 0 0.00% 0.00%
D 7122 5842 39 39 0.55% 0.67%

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 8 15 14642 89.78 765 753 154.7
A 3 1 10635 63.88 765 753 154.7
A 0 226 7177 41.53 765 753 154.7
B 4 239 133585 935.29 753 738 142.0
B 4 81 88838 620.26 753 738 142.0
B 0 214 80733 563.19 753 738 142.0
C 13 61 5394 28.09 726 733 165.9
C 8 128 4551 23.01 726 733 165.9
C 14 67 3571 17.1 726 733 165.9
D 13 104 158330 899.64 734 715 175.2
D 7 71 157641 895.71 734 715 175.2
D 8 195 84312 477.16 734 715 175.2

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