ASTROSAT CZTI

Data Quality Report

Orbit 45268

Creation date: 2024-06-27T23:11:44.174201
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/AS1A13_024T03_9000006064_45268cztM0_level2.fits modeM0/AS1A13_024T03_9000006064_45268cztM0_level2_quad_clean.evt
Size (bytes)510,874,560100,140,480
Size487.2 MB 95.5 MB
Events in quadrant A5,366,694684,774
Events in quadrant B3,003,380724,107
Events in quadrant C2,846,643697,142
Events in quadrant D7,202,797484,621

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0208551
B0131521
C0129711
D0259025

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63252423.826087%
B6326600.948467%
C6326380.600696%
D6325159825.264822%

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 7350 6325 62 62 0.84% 0.98%
B 7351 6326 2 2 0.03% 0.03%
C 7351 6326 0 0 0.00% 0.00%
D 7350 6325 1400 1400 19.05% 22.13%

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 2356486 15792.03 715 701 149.2
A 13 248 203552 1359.81 715 701 149.2
A 15 174 23197 150.8 715 701 149.2
B 5 255 24438 168.45 724 704 140.9
B 10 3 22808 156.89 724 704 140.9
B 12 111 18099 123.46 724 704 140.9
C 14 254 15541 87.61 717 722 169.1
C 3 233 10706 59.03 717 722 169.1
C 12 249 8082 43.51 717 722 169.1
D 13 249 3443713 22375.63 605 584 153.9
D 11 241 568151 3688.41 605 584 153.9
D 2 249 295214 1914.69 605 584 153.9

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