ASTROSAT CZTI

Data Quality Report

Orbit 10381

Creation date: 2024-06-27T15:58:40.543883
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/AS1A03_073T01_9000001498_10381cztM0_level2.evt modeM0/AS1A03_073T01_9000001498_10381cztM0_level2_quad_clean.evt
Size (bytes)476,205,12097,580,160
Size454.1 MB 93.1 MB
Events in quadrant A3,041,142629,024
Events in quadrant B3,456,026636,033
Events in quadrant C2,952,605637,985
Events in quadrant D4,527,175595,066

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135002
B0144641
C0133941
D0179111

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6557851.296325%
B6557971.479335%
C6557400.610035%
D65572263.446698%

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 7137 6557 0 0 0.00% 0.00%
B 7137 6557 20 20 0.28% 0.31%
C 7137 6558 0 0 0.00% 0.00%
D 7137 6558 116 116 1.63% 1.77%

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 8 15 34217 213.02 777 761 157.1
A 5 16 8316 48.1 777 761 157.1
A 0 226 7177 40.85 777 761 157.1
B 4 239 226206 1514.99 775 755 148.8
B 11 51 117929 787.39 775 755 148.8
B 0 214 58214 386.11 775 755 148.8
C 14 234 8063 41.95 754 756 174.2
C 13 61 5627 27.96 754 756 174.2
C 9 54 2699 11.15 754 756 174.2
D 8 195 632508 3522.44 745 723 179.4
D 1 20 419862 2336.86 745 723 179.4
D 2 33 236081 1312.21 745 723 179.4

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