ASTROSAT CZTI

Data Quality Report

Orbit 04111

Creation date: 2024-06-27T14:37:35.447561
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/AS1G05_192T01_9000000526_04111cztM0_level2.evt modeM0/AS1G05_192T01_9000000526_04111cztM0_level2_quad_clean.evt
Size (bytes)492,278,40091,287,360
Size469.5 MB 87.1 MB
Events in quadrant A3,712,141579,099
Events in quadrant B3,226,389593,680
Events in quadrant C4,420,063573,189
Events in quadrant D3,107,740564,410

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154433
B0139242
C0175802
D0138462

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65101502.304147%
B65101191.827957%
C65105538.494624%
D6510951.459293%

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 9095 6510 39 39 0.43% 0.60%
B 9095 6510 0 0 0.00% 0.00%
C 9095 6511 280 280 3.08% 4.30%
D 9095 6511 10 10 0.11% 0.15%

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 0 199 404877 2511.33 790 773 160.9
A 14 111 201644 1248.33 790 773 160.9
A 0 226 43451 265.23 790 773 160.9
B 15 204 43765 279.42 809 790 153.8
B 14 167 32352 205.21 809 790 153.8
B 0 183 15668 96.74 809 790 153.8
C 9 144 1385202 7896.02 758 763 175.3
C 5 190 28547 158.46 758 763 175.3
C 4 254 28227 156.64 758 763 175.3
D 13 239 76270 403.5 778 755 187.1
D 2 14 24352 126.09 778 755 187.1
D 13 46 21389 110.25 778 755 187.1

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