ASTROSAT CZTI

Data Quality Report

Orbit 23953

Creation date: 2024-06-27T19:00:25.565401
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/AS1A07_101T02_9000003544_23953cztM0_level2.evt modeM0/AS1A07_101T02_9000003544_23953cztM0_level2_quad_clean.evt
Size (bytes)595,840,32095,420,160
Size568.2 MB 91.0 MB
Events in quadrant A3,239,933624,619
Events in quadrant B3,231,493633,239
Events in quadrant C3,209,404608,786
Events in quadrant D7,928,848574,854

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134892
B0134111
C0133621
D0279641

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6418661.028358%
B6419640.997040%
C6419671.043776%
D6419172426.857766%

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 7548 6419 1 1 0.01% 0.02%
B 7549 6420 1 1 0.01% 0.02%
C 7549 6420 0 0 0.00% 0.00%
D 7549 6420 1469 1469 19.46% 22.88%

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 14 111 25970 151.58 834 819 165.9
A 13 254 9557 52.66 834 819 165.9
A 0 226 7371 39.49 834 819 165.9
B 12 111 18468 114.16 819 801 154.8
B 11 111 16294 100.11 819 801 154.8
B 14 111 15012 91.83 819 801 154.8
C 14 238 126888 690.4 789 794 182.6
C 0 10 7920 39.02 789 794 182.6
C 13 61 5483 25.67 789 794 182.6
D 12 218 4860405 29496.42 685 666 164.8
D 8 195 402184 2437.03 685 666 164.8
D 12 250 42215 252.18 685 666 164.8

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