ASTROSAT CZTI

Data Quality Report

Orbit 23580

Creation date: 2024-06-27T18:56:23.513363
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/AS1A07_011T01_9000003482_23580cztM0_level2.evt modeM0/AS1A07_011T01_9000003482_23580cztM0_level2_quad_clean.evt
Size (bytes)466,925,760102,320,640
Size445.3 MB 97.6 MB
Events in quadrant A3,194,568680,353
Events in quadrant B3,508,509692,660
Events in quadrant C3,548,625635,782
Events in quadrant D3,448,950638,060

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134222
B0144282
C0145332
D0146122

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6484630.971622%
B64831161.789295%
C64842343.608883%
D6484540.832819%

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 7754 6484 0 0 0.00% 0.00%
B 7754 6484 10 10 0.13% 0.15%
C 7754 6485 128 128 1.65% 1.97%
D 7754 6484 16 16 0.21% 0.25%

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 11603 66.0 828 813 163.5
A 0 226 7149 38.76 828 813 163.5
A 3 137 6697 35.99 828 813 163.5
B 0 189 121771 796.18 820 802 151.9
B 14 207 58520 379.88 820 802 151.9
B 0 230 49483 320.4 820 802 151.9
C 0 10 401283 2283.16 765 771 175.4
C 14 238 126709 717.92 765 771 175.4
C 10 9 18995 103.89 765 771 175.4
D 1 52 196205 1025.49 791 766 190.6
D 9 85 123459 643.78 791 766 190.6
D 7 223 41180 212.06 791 766 190.6

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