ASTROSAT CZTI

Data Quality Report

Orbit 30233

Creation date: 2024-06-27T20:12:28.005607
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_007T01_9000004350_30233cztM0_level2.evt modeM0/AS1A10_007T01_9000004350_30233cztM0_level2_quad_clean.evt
Size (bytes)592,246,08091,618,560
Size564.8 MB 87.4 MB
Events in quadrant A3,734,335571,438
Events in quadrant B5,633,897577,007
Events in quadrant C3,632,097566,801
Events in quadrant D4,444,432554,087

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155452
B0219102
C0151993
D0177832

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72541031.419906%
B72551411.943487%
C72541191.640474%
D72542022.784671%

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 9004 7254 9 9 0.10% 0.12%
B 9005 7257 1 1 0.01% 0.01%
C 9004 7256 0 0 0.00% 0.00%
D 9004 7256 123 123 1.37% 1.70%

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 14 239 197956 1077.88 907 889 182.8
A 8 192 27455 145.3 907 889 182.8
A 13 254 13765 70.42 907 889 182.8
B 6 159 2051255 11838.64 902 878 173.2
B 12 111 21895 121.35 902 878 173.2
B 11 111 20004 110.43 902 878 173.2
C 14 238 144441 688.86 881 889 208.4
C 3 233 29820 138.83 881 889 208.4
C 2 114 17260 78.56 881 889 208.4
D 12 233 642545 2901.59 877 856 221.2
D 8 195 290753 1310.85 877 856 221.2
D 13 104 81503 364.67 877 856 221.2

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