ASTROSAT CZTI

Data Quality Report

Orbit 14511

Creation date: 2024-06-27T16:56:13.677507
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/AS1G08_066T01_9000002138_14511cztM0_level2.evt modeM0/AS1G08_066T01_9000002138_14511cztM0_level2_quad_clean.evt
Size (bytes)974,030,400147,703,680
Size928.9 MB 140.9 MB
Events in quadrant A5,935,196921,327
Events in quadrant B6,335,863929,733
Events in quadrant C8,288,968915,430
Events in quadrant D8,085,235834,068

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02560
B02560
C02560
D02560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0257223
B0264192
C0325782
D0329492

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A126161511.196893%
B126161731.371275%
C126164903.883957%
D1261610398.235574%

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 13827 12619 0 0 0.00% 0.00%
B 13827 12619 7 7 0.05% 0.06%
C 13827 12619 377 377 2.73% 2.99%
D 13827 12617 536 536 3.88% 4.25%

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 8 15 88358 285.34 1496 1460 304.5
A 12 189 63326 203.14 1496 1460 304.5
A 0 23 19790 60.19 1496 1460 304.5
B 5 29 136388 471.19 1491 1453 286.4
B 3 209 107615 370.72 1491 1453 286.4
B 0 189 65287 222.91 1491 1453 286.4
C 0 207 2214008 6656.4 1436 1443 332.4
C 3 233 450959 1352.35 1436 1443 332.4
C 10 22 16852 46.36 1436 1443 332.4
D 10 199 1964301 5305.61 1387 1356 370.0
D 12 110 670953 1809.84 1387 1356 370.0
D 2 120 100051 266.76 1387 1356 370.0

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