ASTROSAT CZTI

Data Quality Report

Orbit 45736

Creation date: 2024-06-27T23:15:34.788702
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/AS1T05_183T01_9000006124_45736cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45736cztM0_level2_quad_clean.evt
Size (bytes)509,126,400106,479,360
Size485.5 MB 101.5 MB
Events in quadrant A5,744,954716,824
Events in quadrant B4,655,565726,029
Events in quadrant C3,000,038727,860
Events in quadrant D4,972,436627,620

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0206811
B0179131
C0130251
D0188421

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61052343.832924%
B61063345.470029%
C6106580.949885%
D61064687.664592%

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 7270 6106 20 20 0.28% 0.33%
B 7271 6107 195 195 2.68% 3.19%
C 7271 6107 13 13 0.18% 0.21%
D 7271 6107 399 399 5.49% 6.53%

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 10 83 2700949 17747.21 737 723 152.1
A 13 248 134808 881.27 737 723 152.1
A 14 235 46800 302.84 737 723 152.1
B 3 112 1032954 7231.72 724 704 142.7
B 5 172 394974 2762.17 724 704 142.7
B 5 255 104324 725.94 724 704 142.7
C 14 254 123521 723.29 721 725 169.8
C 12 2 21344 121.45 721 725 169.8
C 11 16 12088 66.93 721 725 169.8
D 1 52 1478470 8342.36 712 692 177.1
D 13 249 294664 1659.53 712 692 177.1
D 2 249 260065 1464.21 712 692 177.1

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