ASTROSAT CZTI

Data Quality Report

Orbit 03573

Creation date: 2024-06-27T14:31:07.036073
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/AS1G05_045T01_9000000468_03573cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03573cztM0_level2_quad_clean.evt
Size (bytes)483,456,96090,190,080
Size461.1 MB 86.0 MB
Events in quadrant A3,383,479578,880
Events in quadrant B4,320,102572,538
Events in quadrant C3,143,564565,246
Events in quadrant D3,338,231546,617

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145133
B0175052
C0139832
D0145742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67151341.995532%
B67151612.397617%
C6715911.355175%
D67151412.099777%

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 7859 6715 6 6 0.08% 0.09%
B 7859 6715 23 23 0.29% 0.34%
C 7859 6715 0 0 0.00% 0.00%
D 7859 6715 53 53 0.67% 0.79%

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 0 118 92349 540.68 821 802 169.3
A 7 16 50511 293.58 821 802 169.3
A 15 174 26086 149.33 821 802 169.3
B 15 204 815787 5161.99 822 801 157.9
B 6 205 72577 454.62 822 801 157.9
B 4 81 63872 399.48 822 801 157.9
C 1 16 43983 234.13 791 793 184.5
C 13 61 6816 32.65 791 793 184.5
C 7 189 6213 29.38 791 793 184.5
D 1 193 148962 777.22 792 769 190.7
D 13 223 52532 271.48 792 769 190.7
D 7 39 22018 111.44 792 769 190.7

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