ASTROSAT CZTI

Data Quality Report

Orbit 13779

Creation date: 2024-06-27T16:45:59.821079
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_13779cztM0_level2.evt modeM0/AS1A04_199T01_9000002040_13779cztM0_level2_quad_clean.evt
Size (bytes)510,105,60072,184,320
Size486.5 MB 68.8 MB
Events in quadrant A3,154,502470,098
Events in quadrant B3,257,940481,899
Events in quadrant C3,109,318462,118
Events in quadrant D5,507,163339,503

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129563
B0132692
C0128672
D0203702

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6182210.339696%
B6182470.760272%
C618290.145584%
D618293115.059851%

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 7528 6184 0 0 0.00% 0.00%
B 7528 6184 10 10 0.13% 0.16%
C 7528 6184 0 0 0.00% 0.00%
D 7528 6184 901 901 11.97% 14.57%

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 1 162 20514 120.98 807 794 163.0
A 8 15 9277 52.04 807 794 163.0
A 0 226 7321 40.04 807 794 163.0
B 3 64 34152 219.88 813 796 151.7
B 4 80 26306 168.16 813 796 151.7
B 12 111 17016 106.92 813 796 151.7
C 3 233 67441 371.9 780 789 179.2
C 13 61 5675 27.26 780 789 179.2
C 14 234 2292 8.39 780 789 179.2
D 1 3 2436884 13697.26 673 661 177.9
D 5 222 199841 1119.86 673 661 177.9
D 1 52 199827 1119.78 673 661 177.9

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