ASTROSAT CZTI

Data Quality Report

Orbit 45799

Creation date: 2024-06-27T23:16:20.125155
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/AS1T05_088T01_9000006126_45799cztM0_level2.fits modeM0/AS1T05_088T01_9000006126_45799cztM0_level2_quad_clean.evt
Size (bytes)857,836,800117,411,840
Size818.1 MB 112.0 MB
Events in quadrant A6,869,471832,103
Events in quadrant B11,682,074633,976
Events in quadrant C4,205,872832,077
Events in quadrant D8,390,182710,064

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0252912
B0402305
C0181672
D0304912

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78592713.448276%
B7858270434.410792%
C78581602.036142%
D785884310.727921%

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 7939 7861 29 29 0.37% 0.37%
B 7938 7860 1592 1592 20.06% 20.25%
C 7938 7860 100 100 1.26% 1.27%
D 7938 7860 665 665 8.38% 8.46%

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 10 83 3291970 17890.84 888 870 184.0
A 9 191 67480 362.1 888 870 184.0
A 13 248 32254 170.61 888 870 184.0
B 3 112 7778578 49421.45 802 776 157.4
B 4 171 180577 1142.49 802 776 157.4
B 5 172 140455 887.54 802 776 157.4
C 12 2 752814 3709.97 866 868 202.7
C 12 249 44089 213.25 866 868 202.7
C 3 233 13202 60.85 866 868 202.7
D 11 241 2582084 12191.78 839 812 211.7
D 12 2 866668 4089.58 839 812 211.7
D 2 249 819902 3868.7 839 812 211.7

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