ASTROSAT CZTI

Data Quality Report

Orbit 14599

Creation date: 2024-06-27T16:57:19.755337
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/AS1G08_055T02_9000002148_14599cztM0_level2.evt modeM0/AS1G08_055T02_9000002148_14599cztM0_level2_quad_clean.evt
Size (bytes)655,660,80066,608,640
Size625.3 MB 63.5 MB
Events in quadrant A7,637,098388,866
Events in quadrant B3,444,908402,579
Events in quadrant C3,666,217393,256
Events in quadrant D4,649,602358,170

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0275203
B0143792
C0147152
D0182972

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67953104.562178%
B6795871.280353%
C6795771.133186%
D67955007.358352%

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 6796 17 17 0.22% 0.25%
B 7726 6796 2 2 0.03% 0.03%
C 7726 6796 0 0 0.00% 0.00%
D 7726 6796 352 352 4.56% 5.18%

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 23 3849020 22829.66 835 815 168.6
A 0 226 235986 1395.16 835 815 168.6
A 8 15 121744 717.41 835 815 168.6
B 0 189 38166 228.42 843 821 163.5
B 0 205 26870 159.33 843 821 163.5
B 0 214 21459 126.23 843 821 163.5
C 3 233 450524 2359.45 818 822 190.6
C 10 22 26478 134.61 818 822 190.6
C 13 61 5760 25.91 818 822 190.6
D 10 199 1116967 5948.66 787 767 187.6
D 12 110 461082 2453.2 787 767 187.6
D 2 152 34089 177.58 787 767 187.6

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