ASTROSAT CZTI

Data Quality Report

Orbit 04517

Creation date: 2024-06-27T14:43:12.913436
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/AS1G05_250T01_9000000568_04517cztM0_level2.evt modeM0/AS1G05_250T01_9000000568_04517cztM0_level2_quad_clean.evt
Size (bytes)420,304,32057,432,960
Size400.8 MB 54.8 MB
Events in quadrant A4,100,338332,623
Events in quadrant B2,785,534346,367
Events in quadrant C2,593,826335,995
Events in quadrant D2,861,689325,106

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160672
B0120201
C0118121
D0126461

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56983906.844507%
B5698891.561952%
C5698510.895051%
D56981051.842752%

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 6848 5699 218 218 3.18% 3.83%
B 6848 5699 2 2 0.03% 0.04%
C 6848 5699 2 2 0.03% 0.04%
D 6848 5699 37 37 0.54% 0.65%

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 13 1391536 10346.65 655 638 134.4
A 0 50 137299 1016.6 655 638 134.4
A 13 251 24160 174.98 655 638 134.4
B 4 80 98486 770.4 671 655 127.0
B 15 204 23341 178.65 671 655 127.0
B 4 200 22836 174.67 671 655 127.0
C 9 247 66367 443.53 642 643 148.2
C 14 67 8842 55.33 642 643 148.2
C 13 61 5387 32.01 642 643 148.2
D 13 235 225571 1493.98 636 615 150.6
D 13 239 54898 360.5 636 615 150.6
D 2 136 44740 293.04 636 615 150.6

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