ASTROSAT CZTI

Data Quality Report

Orbit 30397

Creation date: 2024-06-27T20:14:41.918678
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_006T01_9000004370_30397cztM0_level2.evt modeM0/AS1T04_006T01_9000004370_30397cztM0_level2_quad_clean.evt
Size (bytes)314,936,64058,648,320
Size300.3 MB 55.9 MB
Events in quadrant A1,894,378394,432
Events in quadrant B2,928,435398,370
Events in quadrant C1,883,445375,219
Events in quadrant D2,597,071363,701

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A078771
B0110311
C077651
D0101711

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3439892.587962%
B34401123.255814%
C3440742.151163%
D3440992.877907%

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 4664 3439 1 1 0.02% 0.03%
B 4665 3440 3 3 0.06% 0.09%
C 4665 3440 0 0 0.00% 0.00%
D 4665 3440 43 43 0.92% 1.25%

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 0 13 22002 225.41 480 472 95.5
A 8 192 12690 127.92 480 472 95.5
A 13 254 7200 70.44 480 472 95.5
B 6 159 996465 10918.12 476 465 91.2
B 0 229 69029 751.6 476 465 91.2
B 12 111 10056 105.14 476 465 91.2
C 14 238 74370 694.66 454 457 106.4
C 3 233 30946 286.55 454 457 106.4
C 2 114 8443 75.06 454 457 106.4
D 8 195 590787 5236.87 452 443 112.7
D 13 249 111304 983.43 452 443 112.7
D 13 138 66875 589.31 452 443 112.7

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