ASTROSAT CZTI

Data Quality Report

Orbit 48408

Creation date: 2024-09-09T22:59:52.417209
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_029T01_9000006426_48408cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48408cztM0_level2_quad_clean.evt
Size (bytes)669,329,280123,721,920
Size638.3 MB 118.0 MB
Events in quadrant A8,472,412833,287
Events in quadrant B5,428,668834,224
Events in quadrant C3,639,319840,328
Events in quadrant D6,609,429675,775

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0309220
B0218610
C0170110
D0254760

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80893584.425763%
B80905376.637824%
C8090220.271941%
D8090108013.349815%

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 8089 8089 61 61 0.75% 0.75%
B 8090 8090 198 198 2.45% 2.45%
C 8090 8090 0 0 0.00% 0.00%
D 8090 8090 815 815 10.07% 10.07%

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 4632045 24302.96 909 889 190.6
A 13 248 319394 1671.42 909 889 190.6
A 13 254 16713 83.04 909 889 190.6
B 12 16 1747290 9806.32 893 864 178.1
B 0 183 40307 221.48 893 864 178.1
B 0 198 39359 216.15 893 864 178.1
C 15 208 116633 544.32 896 898 212.6
C 14 254 18374 82.19 896 898 212.6
C 9 237 8689 36.64 896 898 212.6
D 12 2 1546715 7182.68 848 822 215.2
D 5 222 969102 4498.92 848 822 215.2
D 2 249 627813 2913.19 848 822 215.2

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