ASTROSAT CZTI

Data Quality Report

Orbit 30322

Creation date: 2024-06-27T20:13:39.968193
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/AS1A10_071T23_9000004356_30322cztM0_level2.evt modeM0/AS1A10_071T23_9000004356_30322cztM0_level2_quad_clean.evt
Size (bytes)645,920,640103,406,400
Size616.0 MB 98.6 MB
Events in quadrant A6,528,667671,212
Events in quadrant B5,862,715688,106
Events in quadrant C3,324,450669,383
Events in quadrant D3,415,851658,818

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0237021
B0218141
C0140001
D0143681

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6362107616.912920%
B63622423.803835%
C63621241.949073%
D6362580.911663%

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 7452 6362 787 787 10.56% 12.37%
B 7452 6362 55 55 0.74% 0.86%
C 7452 6362 0 0 0.00% 0.00%
D 7452 6362 21 21 0.28% 0.33%

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 14 239 3508410 22516.72 774 759 155.8
A 5 203 20042 123.78 774 759 155.8
A 13 254 11109 66.44 774 759 155.8
B 6 159 1667281 10909.63 795 774 152.8
B 6 36 1000186 6542.55 795 774 152.8
B 0 190 37026 237.32 795 774 152.8
C 14 238 135734 737.39 781 786 183.0
C 3 233 118447 642.93 781 786 183.0
C 2 114 15029 77.83 781 786 183.0
D 13 104 139649 738.46 794 775 188.1
D 8 195 114309 603.71 794 775 188.1
D 2 250 80259 422.65 794 775 188.1

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