ASTROSAT CZTI

Data Quality Report

Orbit 43923

Creation date: 2024-06-27T22:57:14.665314
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_023T01_9000005916_43923cztM0_level2.fits modeM0/AS1A13_023T01_9000005916_43923cztM0_level2_quad_clean.evt
Size (bytes)434,407,680108,074,880
Size414.3 MB 103.1 MB
Events in quadrant A4,867,687725,722
Events in quadrant B3,093,953764,715
Events in quadrant C3,122,197724,781
Events in quadrant D4,526,031634,170

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0193351
B0130041
C0127921
D0174561

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60611151.897377%
B6061560.923940%
C6061220.362976%
D60612964.883683%

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 7301 6062 33 33 0.45% 0.54%
B 7301 6062 8 8 0.11% 0.13%
C 7301 6062 0 0 0.00% 0.00%
D 7301 6062 225 225 3.08% 3.71%

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 985124 6669.26 716 702 147.6
A 15 222 698499 4727.43 716 702 147.6
A 15 223 147654 995.57 716 702 147.6
B 4 171 78385 554.25 724 703 140.2
B 5 172 44809 314.69 724 703 140.2
B 5 235 36736 257.09 724 703 140.2
C 10 22 219854 1312.14 717 721 167.0
C 3 233 49351 291.19 717 721 167.0
C 14 254 31022 181.44 717 721 167.0
D 1 52 492135 2857.91 695 675 172.0
D 7 80 479363 2783.64 695 675 172.0
D 5 70 309986 1798.69 695 675 172.0

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