ASTROSAT CZTI

Data Quality Report

Orbit 41330

Creation date: 2024-06-27T22:27:40.662266
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_037T01_9000005652_41330cztM0_level2.fits modeM0/AS1A12_037T01_9000005652_41330cztM0_level2_quad_clean.evt
Size (bytes)326,396,16084,435,840
Size311.3 MB 80.5 MB
Events in quadrant A2,718,070579,958
Events in quadrant B2,810,427602,005
Events in quadrant C3,141,205526,543
Events in quadrant D3,033,608507,126

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108233
B0114232
C0120192
D0122352

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A486490.185033%
B4864611.254112%
C48642966.085526%
D48641082.220395%

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 6986 4865 4 4 0.06% 0.08%
B 6986 4865 41 41 0.59% 0.84%
C 6986 4865 294 294 4.21% 6.04%
D 6986 4865 105 105 1.50% 2.16%

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 493548 4234.23 567 556 116.4
A 2 79 22254 186.36 567 556 116.4
A 13 6 6412 50.3 567 556 116.4
B 5 255 494857 4567.15 565 551 108.2
B 0 190 80838 741.81 565 551 108.2
B 12 111 13849 122.86 565 551 108.2
C 0 10 886909 7184.9 525 528 123.4
C 15 214 203242 1643.18 525 528 123.4
C 15 159 5381 39.34 525 528 123.4
D 1 52 531075 3981.18 540 526 133.3
D 1 47 268310 2009.42 540 526 133.3
D 2 249 36943 273.27 540 526 133.3

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