ASTROSAT CZTI

Data Quality Report

Orbit 13704

Creation date: 2024-06-27T16:44:52.126341
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/AS1T02_040T01_9000002030_13704cztM0_level2.evt modeM0/AS1T02_040T01_9000002030_13704cztM0_level2_quad_clean.evt
Size (bytes)527,201,280103,429,440
Size502.8 MB 98.6 MB
Events in quadrant A3,381,153670,041
Events in quadrant B3,869,390725,045
Events in quadrant C3,470,440655,551
Events in quadrant D4,780,744604,222

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143013
B0159382
C0143422
D0188402

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6849350.511024%
B68491041.518470%
C6849290.423419%
D68491762.569718%

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 8995 6852 5 5 0.06% 0.07%
B 8995 6852 34 34 0.38% 0.50%
C 8995 6852 0 0 0.00% 0.00%
D 8995 6852 128 128 1.42% 1.87%

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 69 16837 90.05 868 853 177.5
A 11 29 12271 64.33 868 853 177.5
A 1 162 11682 61.01 868 853 177.5
B 0 219 200551 1192.37 884 867 167.5
B 8 250 102017 604.0 884 867 167.5
B 0 189 43480 254.46 884 867 167.5
C 3 233 168763 856.87 846 852 196.0
C 13 61 5951 26.02 846 852 196.0
C 14 234 3514 13.58 846 852 196.0
D 13 122 1286460 5964.75 818 804 215.5
D 5 222 169924 784.63 818 804 215.5
D 1 52 96568 444.29 818 804 215.5

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