ASTROSAT CZTI

Data Quality Report

Orbit 28205

Creation date: 2024-06-27T19:49:09.048781
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_045T09_9000004072_28205cztM0_level2.evt modeM0/AS1A10_045T09_9000004072_28205cztM0_level2_quad_clean.evt
Size (bytes)981,175,680136,359,360
Size935.7 MB 130.0 MB
Events in quadrant A5,848,876833,790
Events in quadrant B5,977,235841,725
Events in quadrant C6,024,334808,226
Events in quadrant D11,021,520783,437

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254180
B0256490
C0257500
D0413500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A124701140.914194%
B124711361.090530%
C124712021.619758%
D124719267.425227%

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 13780 12471 0 0 0.00% 0.00%
B 13781 12471 3 3 0.02% 0.02%
C 13781 12471 8 8 0.06% 0.06%
D 13781 12471 734 734 5.33% 5.89%

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 17749 53.52 1507 1473 304.1
A 12 96 16540 49.54 1507 1473 304.1
A 3 137 15607 46.47 1507 1473 304.1
B 0 183 45687 154.32 1488 1449 286.7
B 0 230 40846 137.44 1488 1449 286.7
B 12 111 36524 122.36 1488 1449 286.7
C 14 238 230093 675.05 1442 1451 338.7
C 15 208 98219 285.7 1442 1451 338.7
C 3 233 44653 127.55 1442 1451 338.7
D 1 52 5023572 14800.39 1429 1393 339.3
D 2 250 175604 513.4 1429 1393 339.3
D 8 195 164148 479.64 1429 1393 339.3

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