ASTROSAT CZTI

Data Quality Report

Orbit 42304

Creation date: 2024-06-27T22:38:04.022148
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/AS1P01_999T99_9000005772_42304cztM0_level2.fits modeM0/AS1P01_999T99_9000005772_42304cztM0_level2_quad_clean.evt
Size (bytes)311,670,72088,862,400
Size297.2 MB 84.7 MB
Events in quadrant A2,971,907598,816
Events in quadrant B2,675,141612,033
Events in quadrant C2,466,892577,402
Events in quadrant D3,000,330523,074

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120952
B0117712
C0109152
D0127952

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0330
C0330
D0330

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5420190.350554%
B5420390.719557%
C542030.055351%
D54191312.417420%

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 7034 5421 8 8 0.11% 0.15%
B 7034 5421 20 20 0.28% 0.37%
C 7034 5421 0 0 0.00% 0.00%
D 7033 5420 129 129 1.83% 2.38%

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 562090 4666.63 586 576 120.3
A 7 3 81851 675.46 586 576 120.3
A 13 248 39604 324.35 586 576 120.3
B 0 245 135381 1176.76 586 568 114.6
B 4 171 87249 756.63 586 568 114.6
B 5 255 83824 726.73 586 568 114.6
C 15 214 228054 1704.49 570 575 133.5
C 12 249 13198 94.58 570 575 133.5
C 13 61 3868 24.67 570 575 133.5
D 1 52 336034 2413.73 562 545 139.0
D 12 6 111935 801.41 562 545 139.0
D 5 171 94700 677.41 562 545 139.0

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