ASTROSAT CZTI

Data Quality Report

Orbit 41107

Creation date: 2024-06-27T22:24:33.386104
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/AS1A12_044T19_9000005600_41107cztM0_level2.fits modeM0/AS1A12_044T19_9000005600_41107cztM0_level2_quad_clean.evt
Size (bytes)460,615,68092,352,960
Size439.3 MB 88.1 MB
Events in quadrant A3,172,563658,067
Events in quadrant B4,003,134617,098
Events in quadrant C2,974,214627,396
Events in quadrant D6,449,482488,522

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126913
B0158152
C0123062
D0231362

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5799140.241421%
B57995208.967063%
C5799350.603552%
D5799124021.382997%

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 8843 5801 3 3 0.03% 0.05%
B 8843 5801 343 343 3.88% 5.91%
C 8843 5801 25 25 0.28% 0.43%
D 8843 5801 1064 1064 12.03% 18.34%

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 549650 4015.34 663 650 136.7
A 12 189 26767 191.02 663 650 136.7
A 2 79 26592 189.74 663 650 136.7
B 0 186 753909 6083.66 633 615 123.8
B 0 245 691648 5580.84 633 615 123.8
B 5 255 50824 405.49 633 615 123.8
C 15 214 253972 1685.56 637 640 150.3
C 14 254 181090 1200.63 637 640 150.3
C 0 10 31287 203.91 637 640 150.3
D 2 249 2330448 16208.19 583 566 143.7
D 13 249 1777275 12359.96 583 566 143.7
D 5 32 36466 249.74 583 566 143.7

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