ASTROSAT CZTI

Data Quality Report

Orbit 33528

Creation date: 2024-06-27T20:49:47.576910
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/AS1A11_037T01_9000004806_33528cztM0_level2.evt modeM0/AS1A11_037T01_9000004806_33528cztM0_level2_quad_clean.evt
Size (bytes)554,892,48090,884,160
Size529.2 MB 86.7 MB
Events in quadrant A2,447,738613,330
Events in quadrant B3,592,432620,004
Events in quadrant C3,242,292610,410
Events in quadrant D7,151,426524,653

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110043
B0141932
C0127082
D0250152

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A547360.109629%
B54732334.257263%
C54731392.539741%
D5473132324.173214%

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 7146 5474 2 2 0.03% 0.04%
B 7146 5474 173 173 2.42% 3.16%
C 7146 5474 112 112 1.57% 2.05%
D 7146 5474 1298 1298 18.16% 23.71%

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 13 254 10747 79.71 628 616 127.1
A 10 83 6056 42.8 628 616 127.1
A 3 137 5888 41.48 628 616 127.1
B 5 172 512204 4308.08 621 605 118.8
B 5 255 380088 3195.56 621 605 118.8
B 4 170 63289 527.85 621 605 118.8
C 0 10 334214 2361.65 612 615 141.3
C 15 214 259711 1834.22 612 615 141.3
C 14 254 102843 723.7 612 615 141.3
D 2 120 2178604 14778.14 571 557 147.4
D 8 195 1313952 8911.44 571 557 147.4
D 13 249 494524 3351.59 571 557 147.4

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