ASTROSAT CZTI

Data Quality Report

Orbit 09354

Creation date: 2024-06-27T15:44:51.501856
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/AS1G07_022T01_9000001322_09354cztM0_level2.evt modeM0/AS1G07_022T01_9000001322_09354cztM0_level2_quad_clean.evt
Size (bytes)701,556,480110,980,800
Size669.1 MB 105.8 MB
Events in quadrant A5,608,534704,505
Events in quadrant B4,162,680716,543
Events in quadrant C3,694,475703,633
Events in quadrant D7,214,770655,205

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0221983
B0179612
C0171902
D0273152

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83563103.709909%
B83561461.747247%
C8356841.005266%
D8356123814.815701%

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 9371 8358 63 63 0.67% 0.75%
B 9371 8358 16 16 0.17% 0.19%
C 9371 8358 0 0 0.00% 0.00%
D 9371 8358 995 995 10.62% 11.90%

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 8 5 1159956 5910.98 964 940 196.1
A 1 162 232239 1179.62 964 940 196.1
A 13 251 121399 614.34 964 940 196.1
B 0 214 88663 463.92 980 953 189.1
B 4 80 80933 423.04 980 953 189.1
B 0 219 67040 349.55 980 953 189.1
C 14 67 7637 30.84 940 942 217.1
C 13 61 7105 28.39 940 942 217.1
C 10 22 6561 25.88 940 942 217.1
D 13 104 2507821 10908.2 861 839 229.8
D 1 52 361605 1569.74 861 839 229.8
D 12 227 267730 1161.28 861 839 229.8

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