ASTROSAT CZTI

Data Quality Report

Orbit 29349

Creation date: 2024-06-27T20:03:04.794564
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_279T01_9000004218_29349cztM0_level2.evt modeM0/AS1T03_279T01_9000004218_29349cztM0_level2_quad_clean.evt
Size (bytes)1,472,679,360208,751,040
Size1.4 GB 199.1 MB
Events in quadrant A6,929,7741,415,742
Events in quadrant B7,716,9911,419,036
Events in quadrant C10,560,2611,329,821
Events in quadrant D18,430,4051,169,300

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02880
B02880
C02880
D02880

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0298902
B0323412
C0413172
D0647139

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A143141220.852312%
B143142501.746542%
C143147054.925248%
D14314343624.004471%

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 15454 14316 30 30 0.19% 0.21%
B 15454 14316 57 57 0.37% 0.40%
C 15454 14316 2 2 0.01% 0.01%
D 15454 14316 2686 2686 17.38% 18.76%

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 269161 784.56 1712 1680 340.9
A 0 13 38034 106.63 1712 1680 340.9
A 13 254 29936 82.88 1712 1680 340.9
B 10 245 791579 2458.46 1700 1658 321.3
B 3 209 79663 242.77 1700 1658 321.3
B 5 172 56806 171.64 1700 1658 321.3
C 10 9 3507910 9236.18 1619 1633 379.6
C 14 238 366399 960.86 1619 1633 379.6
C 14 254 160299 417.96 1619 1633 379.6
D 12 33 4325340 12104.61 1493 1456 357.2
D 7 80 3917086 10961.71 1493 1456 357.2
D 1 52 2966880 8301.63 1493 1456 357.2

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