ASTROSAT CZTI

Data Quality Report

Orbit 03549

Creation date: 2024-06-27T14:30:50.403835
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_03549cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03549cztM0_level2_quad_clean.evt
Size (bytes)549,780,48083,813,760
Size524.3 MB 79.9 MB
Events in quadrant A3,237,785519,769
Events in quadrant B3,618,715519,381
Events in quadrant C6,160,499500,897
Events in quadrant D3,152,343503,904

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147763
B0156352
C0233082
D0148442

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7084290.409373%
B7084560.790514%
C70843905.505364%
D7084400.564653%

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 7739 7085 6 6 0.08% 0.08%
B 7739 7085 1 1 0.01% 0.01%
C 7739 7085 283 283 3.66% 3.99%
D 7739 7085 27 27 0.35% 0.38%

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 72467 443.56 793 775 161.6
A 0 50 45438 276.33 793 775 161.6
A 3 1 42274 256.76 793 775 161.6
B 15 204 234827 1501.05 806 784 155.9
B 14 167 124607 794.15 806 784 155.9
B 0 228 24629 152.93 806 784 155.9
C 1 192 3114864 17190.74 770 772 181.1
C 1 16 20316 107.89 770 772 181.1
C 8 128 6716 32.81 770 772 181.1
D 13 239 70895 376.97 770 748 186.1
D 8 195 35766 188.19 770 748 186.1
D 13 223 30766 161.32 770 748 186.1

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