ASTROSAT CZTI

Data Quality Report

Orbit 29167

Creation date: 2024-06-27T20:01:01.435918
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/AS1A10_099T01_9000004184_29167cztM0_level2.evt modeM0/AS1A10_099T01_9000004184_29167cztM0_level2_quad_clean.evt
Size (bytes)516,216,96082,771,200
Size492.3 MB 78.9 MB
Events in quadrant A3,485,321531,450
Events in quadrant B3,610,287541,234
Events in quadrant C3,582,251509,454
Events in quadrant D4,540,278496,433

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143722
B0147942
C0146902
D0175802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61251111.812245%
B61241522.482038%
C61241592.596342%
D61243756.123449%

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 7475 6126 0 0 0.00% 0.00%
B 7474 6125 14 14 0.19% 0.23%
C 7474 6125 0 0 0.00% 0.00%
D 7474 6125 197 197 2.64% 3.22%

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 13 254 11549 59.81 903 888 178.2
A 3 137 8071 40.3 903 888 178.2
A 0 226 7681 38.11 903 888 178.2
B 0 183 86184 514.08 893 875 165.9
B 12 111 19543 112.5 893 875 165.9
B 11 111 17549 100.48 893 875 165.9
C 14 238 141624 719.55 851 859 195.6
C 3 233 95087 481.67 851 859 195.6
C 2 114 14930 71.93 851 859 195.6
D 1 52 1053131 5412.4 835 818 194.4
D 8 195 207678 1063.95 835 818 194.4
D 13 104 55701 282.28 835 818 194.4

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