ASTROSAT CZTI

Data Quality Report

Orbit 14433

Creation date: 2024-06-27T16:55:07.051954
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/AS1G08_025T01_9000002130_14433cztM0_level2.evt modeM0/AS1G08_025T01_9000002130_14433cztM0_level2_quad_clean.evt
Size (bytes)435,199,68081,446,400
Size415.0 MB 77.7 MB
Events in quadrant A2,905,260521,635
Events in quadrant B3,457,307509,879
Events in quadrant C3,140,053508,400
Events in quadrant D3,262,544500,231

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012701138
B014418145
C012990140
D014090181

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01262
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6100450.737705%
B60992153.525168%
C6099260.426299%
D60971001.640151%

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 7104 6127 0 0 0.00% 0.00%
B 7104 6138 149 149 2.10% 2.43%
C 7104 6131 0 0 0.00% 0.00%
D 7104 6140 90 90 1.27% 1.47%

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 8 15 33376 214.35 739 723 152.3
A 12 189 25914 165.37 739 723 152.3
A 0 226 6711 39.31 739 723 152.3
B 15 222 462623 3350.01 725 707 137.9
B 0 219 43666 311.55 725 707 137.9
B 3 209 31732 225.0 725 707 137.9
C 3 233 386828 2369.06 705 709 163.0
C 13 61 5021 26.46 705 709 163.0
C 12 4 4814 25.19 705 709 163.0
D 2 120 318379 1882.23 706 690 168.8
D 13 122 152271 898.08 706 690 168.8
D 10 199 51953 303.72 706 690 168.8

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