ASTROSAT CZTI

Data Quality Report

Orbit 20230916_T05_152T01_9000005846_level2

Creation date: 2023-09-18T11:23:50.919763
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/AS1T05_152T01_9000005846cztM0_level2.fits modeM0/AS1T05_152T01_9000005846cztM0_level2_quad_clean.evt
Size (bytes)436,389,120657,835,200
Size416.2 MB 627.4 MB
Events in quadrant A2,582,4004,289,743
Events in quadrant B2,474,0104,274,301
Events in quadrant C2,554,3764,171,601
Events in quadrant D2,195,9523,781,339

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01179800
B01110890
C01021350
D01211180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010160
B010160
C010160
D010160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02020
B02010
C02010
D02010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A496719061.824002%
B496786611.330569%
C496761230.247604%
D4967515873.194766%

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 70658 49553 0 0 0.00% 0.00%
B 70658 49682 0 0 0.00% 0.00%
C 70658 49679 0 0 0.00% 0.00%
D 70658 49648 0 0 0.00% 0.00%

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 0 29 2206 9.27 673 633 169.7
A 9 19 2141 8.88 673 633 169.7
A 7 110 2120 8.76 673 633 169.7
B 2 9 2215 12.25 654 624 129.9
B 3 80 1803 9.08 654 624 129.9
B 2 8 1784 8.93 654 624 129.9
C 1 81 2093 8.41 674 631 173.9
C 3 203 2041 8.11 674 631 173.9
C 3 202 1989 7.81 674 631 173.9
D 10 189 1621 6.2 627 571 169.3
D 7 3 1619 6.19 627 571 169.3
D 3 14 1618 6.18 627 571 169.3

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