ASTROSAT CZTI

Data Quality Report

Orbit 48143

Creation date: 2024-08-23T15:01:07.950873
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_009T01_9000006406_48143cztM0_level2.fits modeM0/AS1C09_009T01_9000006406_48143cztM0_level2_quad_clean.evt
Size (bytes)472,224,96089,277,120
Size450.3 MB 85.1 MB
Events in quadrant A7,358,491775,717
Events in quadrant B1,121,55244,430
Events in quadrant C3,077,681763,361
Events in quadrant D5,425,293675,646

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263041
B068681
C0132771
D0203151

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63164477.077264%
B63166316100.000000%
C6317821.298085%
D63175338.437549%

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 7446 6317 77 77 1.03% 1.22%
B 7446 6296 0 0 0.00% 0.00%
C 7447 6318 6 6 0.08% 0.09%
D 7447 6318 425 425 5.71% 6.73%

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 4329029 26955.37 765 750 160.6
A 10 248 35956 219.25 765 750 160.6
A 3 14 21933 131.92 765 750 160.6
B 2 177 870663 78111.4 46 44 11.1
B 4 21 21318 1908.69 46 44 11.1
B 0 200 20501 1835.39 46 44 11.1
C 12 2 53058 286.91 766 772 182.2
C 10 187 14478 75.21 766 772 182.2
C 12 249 13086 67.57 766 772 182.2
D 12 2 1372368 7292.67 745 724 188.1
D 2 37 625728 3322.98 745 724 188.1
D 2 165 166543 881.62 745 724 188.1

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