ASTROSAT CZTI

Data Quality Report

Orbit 07929

Creation date: 2024-06-27T15:25:37.471147
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/AS1A02_027T01_9000001084_07929cztM0_level2.evt modeM0/AS1A02_027T01_9000001084_07929cztM0_level2_quad_clean.evt
Size (bytes)454,213,44085,461,120
Size433.2 MB 81.5 MB
Events in quadrant A3,124,317529,253
Events in quadrant B3,604,588541,595
Events in quadrant C3,072,723552,602
Events in quadrant D3,521,303520,014

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136463
B0150722
C0133672
D0146832

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6369540.847857%
B63691672.622076%
C6369310.486733%
D6369651.020568%

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 7569 6370 8 8 0.11% 0.13%
B 7569 6370 47 47 0.62% 0.74%
C 7569 6370 0 0 0.00% 0.00%
D 7569 6370 23 23 0.30% 0.36%

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 15 234 81973 508.07 787 772 159.8
A 8 15 10032 57.94 787 772 159.8
A 0 226 7696 43.32 787 772 159.8
B 4 239 260890 1743.31 794 774 149.2
B 11 51 122588 816.4 794 774 149.2
B 0 219 45741 301.37 794 774 149.2
C 14 67 6589 32.04 785 791 181.0
C 13 61 6114 29.42 785 791 181.0
C 1 16 4352 19.68 785 791 181.0
D 1 52 194090 1016.23 777 756 190.2
D 2 152 144250 754.25 777 756 190.2
D 4 95 67440 350.51 777 756 190.2

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