ASTROSAT CZTI

Data Quality Report

Orbit 33391

Creation date: 2024-06-27T20:48:17.840486
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_064T02_9000004788_33391cztM0_level2.evt modeM0/AS1A10_064T02_9000004788_33391cztM0_level2_quad_clean.evt
Size (bytes)501,923,52088,093,440
Size478.7 MB 84.0 MB
Events in quadrant A2,492,024594,553
Events in quadrant B3,334,216601,193
Events in quadrant C3,114,508588,462
Events in quadrant D5,890,461502,009

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109973
B0135752
C0125712
D0212842

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A544460.110213%
B54442214.059515%
C54441192.185893%
D544492617.009552%

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 7177 5445 0 0 0.00% 0.00%
B 7177 5445 126 126 1.76% 2.31%
C 7177 5445 89 89 1.24% 1.63%
D 7177 5445 868 868 12.09% 15.94%

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 8077 57.67 644 631 129.1
A 3 137 6293 43.85 644 631 129.1
A 0 226 5544 38.05 644 631 129.1
B 5 172 467746 3839.09 637 621 121.7
B 0 219 128028 1047.1 637 621 121.7
B 5 255 67951 553.36 637 621 121.7
C 0 10 232955 1611.19 622 629 144.2
C 15 214 231948 1604.2 622 629 144.2
C 1 23 135043 932.17 622 629 144.2
D 1 52 1447888 10359.36 567 551 139.7
D 8 195 1084792 7760.49 567 551 139.7
D 13 249 276625 1976.01 567 551 139.7

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