ASTROSAT CZTI

Data Quality Report

Orbit 33094

Creation date: 2024-06-27T20:44:47.920039
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_008T06_9000004762_33094cztM0_level2.evt modeM0/AS1A11_008T06_9000004762_33094cztM0_level2_quad_clean.evt
Size (bytes)370,031,04036,178,560
Size352.9 MB 34.5 MB
Events in quadrant A1,621,678230,496
Events in quadrant B2,240,222212,685
Events in quadrant C2,013,836224,061
Events in quadrant D5,094,521181,295

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070292
B088821
C082031
D0175721

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A346740.115374%
B34672467.095472%
C3467762.192097%
D346787125.122584%

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 5050 3468 0 0 0.00% 0.00%
B 5050 3468 158 158 3.13% 4.56%
C 5050 3468 62 62 1.23% 1.79%
D 5050 3468 824 824 16.32% 23.76%

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 6551 72.79 415 405 84.4
A 15 169 6024 66.55 415 405 84.4
A 13 6 5097 55.57 415 405 84.4
B 5 172 533328 6895.72 397 387 77.3
B 0 189 42496 544.85 397 387 77.3
B 5 200 24904 317.23 397 387 77.3
C 1 23 132832 1427.34 396 398 92.8
C 8 111 115772 1243.47 396 398 92.8
C 0 10 78572 842.54 396 398 92.8
D 7 223 2102840 21682.86 369 361 97.0
D 8 195 846099 8722.09 369 361 97.0
D 2 120 347428 3579.3 369 361 97.0

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