ASTROSAT CZTI

Data Quality Report

Orbit 47113

Creation date: 2024-06-27T23:31:53.241840
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/AS1C09_003T01_9000006298_47113cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47113cztM0_level2_quad_clean.evt
Size (bytes)470,626,560109,866,240
Size448.8 MB 104.8 MB
Events in quadrant A6,760,794736,586
Events in quadrant B3,340,995764,215
Events in quadrant C2,998,521716,467
Events in quadrant D3,817,889656,793

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246602
B0142392
C0136902
D0161042

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64802593.996914%
B64811021.573831%
C6481681.049221%
D64811953.008795%

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 7650 6481 59 59 0.77% 0.91%
B 7651 6482 22 22 0.29% 0.34%
C 7651 6482 38 38 0.50% 0.59%
D 7651 6482 129 129 1.69% 1.99%

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 3835814 25181.54 737 722 152.3
A 9 191 51620 334.2 737 722 152.3
A 13 254 12675 78.48 737 722 152.3
B 8 234 159894 1113.01 735 713 143.0
B 5 32 82548 572.2 735 713 143.0
B 4 21 72598 502.63 735 713 143.0
C 14 254 195281 1189.52 707 707 163.6
C 11 16 27730 165.2 707 707 163.6
C 14 67 6469 35.22 707 707 163.6
D 2 249 535838 3029.9 710 687 176.6
D 1 47 184974 1043.39 710 687 176.6
D 12 233 146071 823.13 710 687 176.6

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