ASTROSAT CZTI

Data Quality Report

Orbit 46913

Creation date: 2024-06-27T23:29:22.144222
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_053T01_9000006282_46913cztM0_level2.fits modeM0/AS1A13_053T01_9000006282_46913cztM0_level2_quad_clean.evt
Size (bytes)621,014,400108,705,600
Size592.2 MB 103.7 MB
Events in quadrant A6,541,835737,028
Events in quadrant B6,775,718692,218
Events in quadrant C3,054,380736,787
Events in quadrant D6,068,507633,206

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239061
B0249582
C0145281
D0229921

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70692964.187297%
B706890912.860781%
C7068400.565931%
D706974610.553119%

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 7399 7069 14 14 0.19% 0.20%
B 7398 7068 318 318 4.30% 4.50%
C 7398 7068 5 5 0.07% 0.07%
D 7399 7070 703 703 9.50% 9.94%

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 3425316 21039.43 780 763 162.8
A 13 248 57835 350.63 780 763 162.8
A 7 3 21959 130.22 780 763 162.8
B 3 112 3615813 24446.36 747 723 147.9
B 5 32 86114 577.44 747 723 147.9
B 0 245 35137 232.72 747 723 147.9
C 12 250 31956 172.17 767 770 181.1
C 0 207 15768 82.8 767 770 181.1
C 14 254 10005 50.98 767 770 181.1
D 1 52 1495599 7989.85 742 719 187.1
D 12 0 1007756 5382.42 742 719 187.1
D 13 249 316342 1686.95 742 719 187.1

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