ASTROSAT CZTI

Data Quality Report

Orbit 20230629_T05_118T01_9000005718_level2

Creation date: 2023-07-01T10:45:19.569643
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_118T01_9000005718cztM0_level2.fits modeM0/AS1T05_118T01_9000005718cztM0_level2_quad_clean.evt
Size (bytes)399,176,640406,033,920
Size380.7 MB 387.2 MB
Events in quadrant A2,645,9842,769,567
Events in quadrant B2,574,7462,928,930
Events in quadrant C2,614,9822,794,779
Events in quadrant D736,642309,586

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010460
B010460
C010460
D010460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01840
B01840
C01840
D01840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01430700
B01230710
C01146130
D04185860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5087130756.044701%
B5087112892.533860%
C5087114382.826758%
D508714538089.206031%

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 69511 50834 0 0 0.00% 0.00%
B 69511 50858 0 0 0.00% 0.00%
C 69511 50726 0 0 0.00% 0.00%
D 69510 46130 0 0 0.00% 0.00%

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 7 110 2270 9.52 689 648 170.3
A 0 29 2266 9.5 689 648 170.3
A 9 19 2264 9.49 689 648 170.3
B 2 9 2312 12.41 683 652 133.8
B 2 8 1953 9.72 683 652 133.8
B 3 80 1895 9.29 683 652 133.8
C 1 81 2170 8.52 689 643 179.1
C 3 203 2093 8.09 689 643 179.1
C 1 80 2048 7.84 689 643 179.1
D 7 3 567 6.38 211 191 59.0
D 4 160 565 6.34 211 191 59.0
D 1 3 542 5.95 211 191 59.0

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