ASTROSAT CZTI

Data Quality Report

Orbit 13590

Creation date: 2024-06-27T16:43:07.274381
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/AS1A04_193T01_9000002004_13590cztM0_level2.evt modeM0/AS1A04_193T01_9000002004_13590cztM0_level2_quad_clean.evt
Size (bytes)427,147,200121,207,680
Size407.4 MB 115.6 MB
Events in quadrant A2,874,141827,333
Events in quadrant B3,181,427832,308
Events in quadrant C2,933,936829,952
Events in quadrant D3,563,982787,770

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118092
B0128911
C0121851
D0141321

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5628170.302061%
B5628911.616915%
C5628150.266525%
D56281132.007818%

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 6943 5628 0 0 0.00% 0.00%
B 6944 5630 56 56 0.81% 0.99%
C 6943 5629 0 0 0.00% 0.00%
D 6943 5629 105 105 1.51% 1.87%

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 2 250 63349 434.29 722 709 144.2
A 1 162 22098 148.29 722 709 144.2
A 0 226 6622 41.0 722 709 144.2
B 0 182 206601 1579.42 711 695 130.4
B 3 64 100943 768.96 711 695 130.4
B 0 189 46914 354.53 711 695 130.4
C 3 233 178442 1114.53 703 707 159.5
C 0 207 15668 93.81 703 707 159.5
C 13 61 5097 27.53 703 707 159.5
D 13 249 497307 2946.7 702 683 168.5
D 5 222 160350 947.38 702 683 168.5
D 12 110 112448 663.15 702 683 168.5

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