ASTROSAT CZTI

Data Quality Report

Orbit 10786

Creation date: 2024-06-27T16:03:53.036311
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/AS1G07_062T01_9000001560_10786cztM0_level2.evt modeM0/AS1G07_062T01_9000001560_10786cztM0_level2_quad_clean.evt
Size (bytes)560,278,080128,321,280
Size534.3 MB 122.4 MB
Events in quadrant A3,210,565858,950
Events in quadrant B5,485,753839,949
Events in quadrant C3,109,421876,916
Events in quadrant D4,684,232819,522

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146413
B0211942
C0143822
D0187172

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7052390.553035%
B70526999.912082%
C7052420.595576%
D70522874.069767%

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 7732 7053 12 12 0.16% 0.17%
B 7732 7053 390 390 5.04% 5.53%
C 7732 7053 0 0 0.00% 0.00%
D 7732 7053 193 193 2.50% 2.74%

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 15 174 85798 519.72 802 783 163.6
A 1 162 11944 68.23 802 783 163.6
A 13 248 9024 50.38 802 783 163.6
B 4 239 2180558 14648.25 784 762 148.8
B 0 219 86041 573.08 784 762 148.8
B 6 51 85865 571.89 784 762 148.8
C 0 207 5914 28.02 791 793 182.8
C 13 61 5883 27.85 791 793 182.8
C 8 222 5297 24.64 791 793 182.8
D 10 199 476824 2555.52 776 754 186.3
D 12 233 341872 1831.1 776 754 186.3
D 8 195 303703 1626.22 776 754 186.3

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