ASTROSAT CZTI

Data Quality Report

Orbit 41233

Creation date: 2024-06-27T22:26:18.430478
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_102T01_9000005634_41233cztM0_level2.fits modeM0/AS1T05_102T01_9000005634_41233cztM0_level2_quad_clean.evt
Size (bytes)381,913,92098,879,040
Size364.2 MB 94.3 MB
Events in quadrant A3,431,704666,924
Events in quadrant B3,096,771678,273
Events in quadrant C3,749,316637,626
Events in quadrant D3,390,140589,772

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138073
B0132942
C0150762
D0143982

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6030210.348259%
B6030340.563847%
C60301843.051410%
D60301923.184080%

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 8956 6032 15 15 0.17% 0.25%
B 8956 6032 14 14 0.16% 0.23%
C 8956 6032 176 176 1.97% 2.92%
D 8956 6032 179 179 2.00% 2.97%

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 563355 4102.63 663 649 137.2
A 0 8 265557 1931.42 663 649 137.2
A 13 6 15604 109.03 663 649 137.2
B 5 255 148020 1150.58 657 639 128.1
B 0 229 144072 1119.76 657 639 128.1
B 5 185 87682 679.53 657 639 128.1
C 9 54 538386 3601.23 638 642 149.3
C 0 10 457474 3059.37 638 642 149.3
C 15 214 255119 1704.21 638 642 149.3
D 2 249 452270 2854.6 642 624 158.2
D 5 222 289540 1826.08 642 624 158.2
D 6 112 62307 389.86 642 624 158.2

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