ASTROSAT CZTI

Data Quality Report

Orbit 17036

Creation date: 2024-06-27T17:31:09.083780
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_038T01_9000002530_17036cztM0_level2.evt modeM0/AS1T03_038T01_9000002530_17036cztM0_level2_quad_clean.evt
Size (bytes)435,225,600125,173,440
Size415.1 MB 119.4 MB
Events in quadrant A3,104,235849,530
Events in quadrant B3,254,862876,978
Events in quadrant C3,149,086821,855
Events in quadrant D3,240,594799,526

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132903
B0136553
C0133863
D0139573

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6345500.788022%
B6345661.040189%
C6345851.339638%
D63451141.796690%

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 7736 6348 3 3 0.04% 0.05%
B 7736 6347 8 8 0.10% 0.13%
C 7736 6348 0 0 0.00% 0.00%
D 7736 6348 52 52 0.67% 0.82%

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 44430 277.84 796 782 157.1
A 0 226 7030 39.77 796 782 157.1
A 12 194 5809 32.0 796 782 157.1
B 3 64 69304 461.91 800 782 148.3
B 0 189 28981 190.09 800 782 148.3
B 0 229 21351 138.66 800 782 148.3
C 14 238 121049 693.04 757 763 173.6
C 3 233 65569 373.39 757 763 173.6
C 7 247 12493 67.58 757 763 173.6
D 10 70 179128 974.0 759 735 183.2
D 1 52 129834 704.86 759 735 183.2
D 5 222 38415 205.73 759 735 183.2

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