ASTROSAT CZTI

Data Quality Report

Orbit 08219

Creation date: 2024-06-27T15:29:35.589246
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/AS1C02_041T01_9000001136_08219cztM0_level2.evt modeM0/AS1C02_041T01_9000001136_08219cztM0_level2_quad_clean.evt
Size (bytes)440,357,76072,040,320
Size420.0 MB 68.7 MB
Events in quadrant A3,173,892438,809
Events in quadrant B3,336,838442,601
Events in quadrant C3,156,491431,849
Events in quadrant D3,235,429422,895

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134523
B0138032
C0133952
D0138542

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6377961.505410%
B6377881.379959%
C6377681.066332%
D63771061.662224%

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 7572 6377 4 4 0.05% 0.06%
B 7572 6377 2 2 0.03% 0.03%
C 7572 6377 0 0 0.00% 0.00%
D 7572 6377 31 31 0.41% 0.49%

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 5 16 38288 227.68 812 795 164.7
A 8 15 10528 59.1 812 795 164.7
A 0 226 7658 41.68 812 795 164.7
B 0 214 106458 680.83 817 798 155.2
B 0 219 24098 150.13 817 798 155.2
B 4 81 23668 147.36 817 798 155.2
C 9 68 66443 363.28 784 788 180.7
C 8 128 12427 64.4 784 788 180.7
C 8 112 6478 31.48 784 788 180.7
D 12 233 120889 561.42 780 761 214.0
D 13 105 62137 286.84 780 761 214.0
D 1 52 49489 227.73 780 761 214.0

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