ASTROSAT CZTI

Data Quality Report

Orbit 34112

Creation date: 2024-06-27T20:56:57.579025
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/AS1T04_093T01_9000004872_34112cztM0_level2.evt modeM0/AS1T04_093T01_9000004872_34112cztM0_level2_quad_clean.evt
Size (bytes)677,897,28096,756,480
Size646.5 MB 92.3 MB
Events in quadrant A3,341,199626,905
Events in quadrant B4,126,139630,172
Events in quadrant C6,233,223572,712
Events in quadrant D6,333,774589,697

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147881
B0169451
C0230381
D0237491

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A733680.109051%
B73361311.785714%
C733680410.959651%
D73363454.702835%

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 8649 7337 0 0 0.00% 0.00%
B 8649 7337 78 78 0.90% 1.06%
C 8649 7337 702 702 8.12% 9.57%
D 8649 7336 262 262 3.03% 3.57%

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 22606 127.04 851 831 171.4
A 13 6 21538 120.81 851 831 171.4
A 13 254 13663 74.86 851 831 171.4
B 5 172 367323 2253.82 845 823 162.6
B 0 219 107071 653.38 845 823 162.6
B 5 31 90848 553.61 845 823 162.6
C 14 254 1820671 9951.19 788 795 182.9
C 0 10 963873 5266.17 788 795 182.9
C 15 214 302564 1650.09 788 795 182.9
D 8 195 1661791 7575.19 806 791 219.3
D 10 118 278399 1266.07 806 791 219.3
D 7 223 234303 1064.96 806 791 219.3

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