ASTROSAT CZTI

Data Quality Report

Orbit 47838

Creation date: 2024-08-02T15:07:27.029054
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_216T01_9000006356_47838cztM0_level2.fits modeM0/AS1T05_216T01_9000006356_47838cztM0_level2_quad_clean.evt
Size (bytes)523,575,360108,596,160
Size499.3 MB 103.6 MB
Events in quadrant A6,648,056733,436
Events in quadrant B4,013,798748,627
Events in quadrant C3,077,434739,910
Events in quadrant D5,147,389621,085

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246611
B0159501
C0135741
D0197821

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63802293.589342%
B63802874.498433%
C6381661.034321%
D638164710.139477%

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 7545 6380 2 2 0.03% 0.03%
B 7545 6380 155 155 2.05% 2.43%
C 7546 6381 11 11 0.15% 0.17%
D 7546 6381 475 475 6.29% 7.44%

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 3755065 24243.51 747 732 154.9
A 0 31 10539 63.33 747 732 154.9
A 3 137 8409 49.57 747 732 154.9
B 0 186 512500 3551.4 742 720 144.1
B 4 21 432900 2999.03 742 720 144.1
B 0 245 56195 384.96 742 720 144.1
C 12 2 101434 582.44 736 741 172.9
C 14 254 90203 517.47 736 741 172.9
C 1 3 7986 41.91 736 741 172.9
D 12 2 831791 4702.54 700 681 176.7
D 2 249 675194 3816.49 700 681 176.7
D 2 165 534831 3022.3 700 681 176.7

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