ASTROSAT CZTI

Data Quality Report

Orbit 32702

Creation date: 2024-06-27T20:41:00.500768
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/AS1T04_063T01_9000004724_32702cztM0_level2.evt modeM0/AS1T04_063T01_9000004724_32702cztM0_level2_quad_clean.evt
Size (bytes)598,740,48090,213,120
Size571.0 MB 86.0 MB
Events in quadrant A3,211,144620,928
Events in quadrant B2,995,485636,084
Events in quadrant C5,013,734592,325
Events in quadrant D6,565,879522,390

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127473
B0120332
C0186092
D0231782

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51351522.960078%
B5135420.817916%
C51352645.141188%
D5135114922.375852%

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 7079 5136 63 63 0.89% 1.23%
B 7079 5136 24 24 0.34% 0.47%
C 7079 5136 236 236 3.33% 4.60%
D 7079 5136 1029 1029 14.54% 20.04%

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 15 249 736256 5946.57 622 613 123.7
A 0 159 23516 185.14 622 613 123.7
A 14 238 11417 87.33 622 613 123.7
B 0 219 96689 806.45 630 618 119.1
B 3 26 75071 624.98 630 618 119.1
B 0 230 74881 623.39 630 618 119.1
C 3 233 2184230 15801.59 592 597 138.2
C 0 10 333836 2411.44 592 597 138.2
C 0 207 99673 716.95 592 597 138.2
D 12 233 1071441 8118.76 554 543 131.9
D 1 47 641984 4862.94 554 543 131.9
D 2 249 427454 3236.53 554 543 131.9

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