ASTROSAT CZTI

Data Quality Report

Orbit 27568

Creation date: 2024-06-27T19:41:35.916430
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/AS1C05_019T04_9000003956_27568cztM0_level2.evt modeM0/AS1C05_019T04_9000003956_27568cztM0_level2_quad_clean.evt
Size (bytes)356,722,56070,767,360
Size340.2 MB 67.5 MB
Events in quadrant A2,114,242466,672
Events in quadrant B2,241,517473,458
Events in quadrant C2,099,903449,012
Events in quadrant D4,028,238424,293

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A094590
B097700
C094030
D0151260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A468780.170685%
B4688160.341297%
C4688160.341297%
D46883387.209898%

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 4687 4687 0 0 0.00% 0.00%
B 4688 4688 3 3 0.06% 0.06%
C 4688 4688 0 0 0.00% 0.00%
D 4688 4688 363 363 7.74% 7.74%

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 15 174 53762 494.47 533 523 107.7
A 13 254 7390 63.78 533 523 107.7
A 3 137 5039 41.94 533 523 107.7
B 10 245 66070 645.84 531 518 101.5
B 15 32 58957 575.76 531 518 101.5
B 4 52 18660 178.74 531 518 101.5
C 14 238 82985 673.81 515 516 122.4
C 13 61 3569 24.94 515 516 122.4
C 15 208 3444 23.92 515 516 122.4
D 1 52 1671960 13835.9 505 490 120.8
D 7 80 349153 2886.12 505 490 120.8
D 2 250 64951 533.59 505 490 120.8

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