ASTROSAT CZTI

Data Quality Report

Orbit 32918

Creation date: 2024-06-27T20:43:27.515363
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/AS1C07_005T01_9000004748_32918cztM0_level2.evt modeM0/AS1C07_005T01_9000004748_32918cztM0_level2_quad_clean.evt
Size (bytes)441,541,440104,575,680
Size421.1 MB 99.7 MB
Events in quadrant A2,381,822713,629
Events in quadrant B3,112,911722,296
Events in quadrant C2,692,124719,226
Events in quadrant D4,841,338656,677

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0370

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0101993
B0123092
C0109592
D0179522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A506650.098697%
B50662034.007106%
C5066641.263324%
D50661693.335965%

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 7219 5066 0 0 0.00% 0.00%
B 7219 5066 118 118 1.63% 2.33%
C 7219 5067 57 57 0.79% 1.12%
D 7219 5066 152 152 2.11% 3.00%

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 9772 76.23 611 600 120.3
A 13 6 6606 49.91 611 600 120.3
A 0 226 5265 38.77 611 600 120.3
B 5 172 509144 4488.34 611 596 113.3
B 0 230 63980 559.41 611 596 113.3
B 5 200 55144 481.43 611 596 113.3
C 0 10 206054 1480.69 609 613 138.7
C 14 67 45986 327.02 609 613 138.7
C 3 233 29698 209.62 609 613 138.7
D 8 195 1778645 11560.27 589 579 153.8
D 2 250 330976 2148.11 589 579 153.8
D 12 227 165638 1073.15 589 579 153.8

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