ASTROSAT CZTI

Data Quality Report

Orbit 13799

Creation date: 2024-06-27T16:46:16.859221
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/AS1A04_199T01_9000002040_13799cztM0_level2.evt modeM0/AS1A04_199T01_9000002040_13799cztM0_level2_quad_clean.evt
Size (bytes)642,156,48094,196,160
Size612.4 MB 89.8 MB
Events in quadrant A4,096,723574,542
Events in quadrant B4,496,165581,826
Events in quadrant C4,081,641572,589
Events in quadrant D6,206,698543,287

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176715
B0186504
C0175844
D0240304

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83504935.904192%
B83505626.730539%
C83503514.203593%
D83505676.790419%

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 8611 8354 6 6 0.07% 0.07%
B 8611 8355 40 40 0.46% 0.48%
C 8611 8355 0 0 0.00% 0.00%
D 8611 8354 108 108 1.25% 1.29%

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 8 15 54383 247.27 1038 1010 215.8
A 9 143 31402 140.8 1038 1010 215.8
A 1 162 16362 71.12 1038 1010 215.8
B 0 219 193218 960.46 1032 1003 200.1
B 4 80 121974 604.47 1032 1003 200.1
B 8 250 57567 282.64 1032 1003 200.1
C 3 233 72507 302.15 1018 1020 236.6
C 0 207 19018 76.07 1018 1020 236.6
C 8 128 12441 48.27 1018 1020 236.6
D 10 157 1330502 5531.42 1006 981 240.4
D 1 52 646817 2686.98 1006 981 240.4
D 5 222 218755 906.04 1006 981 240.4

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