ASTROSAT CZTI

Data Quality Report

Orbit 17513

Creation date: 2024-06-27T17:37:28.577711
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/AS1T03_068T01_9000002594_17513cztM0_level2.evt modeM0/AS1T03_068T01_9000002594_17513cztM0_level2_quad_clean.evt
Size (bytes)456,059,520108,717,120
Size434.9 MB 103.7 MB
Events in quadrant A3,393,154736,505
Events in quadrant B3,279,122743,599
Events in quadrant C3,262,686690,606
Events in quadrant D3,451,734685,007

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140292
B0136272
C0134432
D0142432

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6256981.566496%
B62561131.806266%
C62561061.694373%
D62561111.774297%

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 7541 6256 4 4 0.05% 0.06%
B 7541 6256 0 0 0.00% 0.00%
C 7541 6256 0 0 0.00% 0.00%
D 7541 6257 12 12 0.16% 0.19%

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 15 174 149073 883.89 844 829 167.7
A 0 226 7508 39.82 844 829 167.7
A 12 194 6240 32.26 844 829 167.7
B 12 111 17440 106.69 833 815 155.8
B 11 111 15502 94.25 833 815 155.8
B 14 111 13102 78.85 833 815 155.8
C 14 238 126423 701.13 783 787 179.2
C 5 218 39329 215.09 783 787 179.2
C 3 233 37486 204.8 783 787 179.2
D 1 52 254333 1327.17 803 780 191.0
D 13 189 104600 543.42 803 780 191.0
D 2 33 26987 137.18 803 780 191.0

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