ASTROSAT CZTI

Data Quality Report

Orbit 43258

Creation date: 2024-06-27T22:49:52.076039
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/AS1A06_006T01_9000005860_43258cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43258cztM0_level2_quad_clean.evt
Size (bytes)277,643,52082,411,200
Size264.8 MB 78.6 MB
Events in quadrant A2,772,557546,634
Events in quadrant B2,210,529569,279
Events in quadrant C2,354,100546,150
Events in quadrant D2,567,674498,111

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110112
B097512
C097432
D0107432

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4776120.251256%
B4776130.272194%
C477630.062814%
D4776440.921273%

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 6928 4777 10 10 0.14% 0.21%
B 6928 4777 6 6 0.09% 0.13%
C 6928 4777 0 0 0.00% 0.00%
D 6928 4777 50 50 0.72% 1.05%

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 533013 4765.63 541 530 111.7
A 12 189 84122 748.13 541 530 111.7
A 15 237 47857 423.57 541 530 111.7
B 5 255 51893 486.49 535 520 105.6
B 0 230 30223 281.28 535 520 105.6
B 0 189 26559 246.59 535 520 105.6
C 15 214 204983 1617.62 534 538 126.4
C 14 254 33905 264.01 534 538 126.4
C 0 207 19090 146.79 534 538 126.4
D 1 52 120069 917.17 533 519 130.3
D 7 96 95547 729.04 533 519 130.3
D 12 6 85215 649.77 533 519 130.3

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