ASTROSAT CZTI

Data Quality Report

Orbit 05066

Creation date: 2024-06-27T14:50:50.489801
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_218T04_9000000640_05066cztM0_level2.evt modeM0/AS1G05_218T04_9000000640_05066cztM0_level2_quad_clean.evt
Size (bytes)1,657,140,480239,791,680
Size1.5 GB 228.7 MB
Events in quadrant A10,743,0781,468,661
Events in quadrant B11,203,4141,472,159
Events in quadrant C11,823,9191,442,941
Events in quadrant D14,845,7231,278,366

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04740
B04740
C04740
D04740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0481165
B0488154
C0505474
D0610897

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A232372030.873607%
B232372180.938159%
C232371920.826268%
D2323617467.514202%

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 51288 23242 11 11 0.02% 0.05%
B 51288 23242 5 5 0.01% 0.02%
C 51288 23242 0 0 0.00% 0.00%
D 51288 23241 1326 1326 2.59% 5.71%

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 13 251 165255 294.51 2716 2661 552.1
A 0 50 85191 149.49 2716 2661 552.1
A 15 174 47476 81.17 2716 2661 552.1
B 15 204 310136 590.11 2728 2668 521.0
B 0 219 137097 258.0 2728 2668 521.0
B 4 48 88759 165.23 2728 2668 521.0
C 1 16 1563072 2591.74 2612 2623 602.1
C 14 67 29853 45.23 2612 2623 602.1
C 13 61 21386 31.16 2612 2623 602.1
D 13 235 4108573 6754.35 2486 2413 607.9
D 13 239 476564 779.94 2486 2413 607.9
D 2 33 275120 448.58 2486 2413 607.9

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