ASTROSAT CZTI

Data Quality Report

Orbit 23030

Creation date: 2024-06-27T18:49:00.181722
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/AS1C05_004T01_9000003404_23030cztM0_level2.evt modeM0/AS1C05_004T01_9000003404_23030cztM0_level2_quad_clean.evt
Size (bytes)561,726,72079,704,000
Size535.7 MB 76.0 MB
Events in quadrant A2,948,921508,387
Events in quadrant B3,200,984521,774
Events in quadrant C3,240,486494,151
Events in quadrant D7,207,026461,146

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125781
B0132771
C0134451
D0256261

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6130140.228385%
B6130621.011419%
C6131781.272223%
D61314787.796444%

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 7505 6131 0 0 0.00% 0.00%
B 7505 6131 26 26 0.35% 0.42%
C 7506 6132 5 5 0.07% 0.08%
D 7506 6132 342 342 4.56% 5.58%

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 9086 55.23 763 749 150.9
A 0 226 6611 38.84 763 749 150.9
A 3 137 6310 36.84 763 749 150.9
B 0 189 82686 582.4 763 746 140.7
B 4 216 81416 573.37 763 746 140.7
B 3 64 25546 176.27 763 746 140.7
C 0 207 215372 1271.93 736 742 168.7
C 14 238 121927 718.16 736 742 168.7
C 0 10 28577 164.95 736 742 168.7
D 1 52 3489958 20006.5 723 702 174.4
D 5 222 386817 2213.88 723 702 174.4
D 13 174 383773 2196.43 723 702 174.4

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