ASTROSAT CZTI

Data Quality Report

Orbit 08379

Creation date: 2024-06-27T15:31:59.884277
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/AS1C02_030T01_9000001168_08379cztM0_level2.evt modeM0/AS1C02_030T01_9000001168_08379cztM0_level2_quad_clean.evt
Size (bytes)396,236,160118,123,200
Size377.9 MB 112.7 MB
Events in quadrant A2,877,679794,506
Events in quadrant B2,966,392808,699
Events in quadrant C2,680,752794,177
Events in quadrant D3,067,585762,053

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01257748
B01263158
C01219440
D01333630

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5990550.918197%
B5982370.618522%
C599070.116861%
D5997681.133900%

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 7315 6011 25 25 0.34% 0.42%
B 7315 6009 7 7 0.10% 0.12%
C 7315 6007 1 1 0.01% 0.02%
D 7315 6011 50 50 0.68% 0.83%

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 14 111 125560 869.77 711 698 143.6
A 1 162 8344 53.26 711 698 143.6
A 0 226 7011 43.98 711 698 143.6
B 0 214 75644 567.42 714 698 132.1
B 10 16 39781 295.9 714 698 132.1
B 4 81 36857 273.76 714 698 132.1
C 1 16 15294 92.91 683 685 157.2
C 13 61 5317 29.46 683 685 157.2
C 3 202 1782 6.98 683 685 157.2
D 13 122 170170 1036.8 681 660 163.5
D 12 233 104953 637.9 681 660 163.5
D 7 71 49454 298.45 681 660 163.5

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