ASTROSAT CZTI

Data Quality Report

Orbit 25117

Creation date: 2024-06-27T19:14:02.638754
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_012T06_9000003674_25117cztM0_level2.evt modeM0/AS1C05_012T06_9000003674_25117cztM0_level2_quad_clean.evt
Size (bytes)726,713,280106,332,480
Size693.0 MB 101.4 MB
Events in quadrant A3,188,993753,130
Events in quadrant B3,321,597767,879
Events in quadrant C4,247,648733,134
Events in quadrant D10,773,570474,295

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144000
B0146180
C0174710
D0368340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7049160.226983%
B7049540.766066%
C70491091.546319%
D7049282240.034047%

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 8679 7051 0 0 0.00% 0.00%
B 8679 7051 3 3 0.03% 0.04%
C 8679 7051 0 0 0.00% 0.00%
D 8679 7050 2731 2731 31.47% 38.74%

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 13 254 11965 67.19 826 808 166.0
A 3 137 7481 40.19 826 808 166.0
A 0 226 6955 37.02 826 808 166.0
B 0 230 33392 206.81 831 811 157.5
B 0 190 27215 167.6 831 811 157.5
B 12 111 18964 115.23 831 811 157.5
C 7 247 970389 5161.04 801 803 187.9
C 14 238 128068 677.42 801 803 187.9
C 3 233 21476 110.04 801 803 187.9
D 12 235 7297238 51495.85 585 569 141.7
D 8 195 651106 4591.13 585 569 141.7
D 1 52 430695 3035.59 585 569 141.7

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