ASTROSAT CZTI

Data Quality Report

Orbit 36632

Creation date: 2024-06-27T21:29:28.182627
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/AS1A11_049T03_9000005228_36632cztM0_level2.evt modeM0/AS1A11_049T03_9000005228_36632cztM0_level2_quad_clean.evt
Size (bytes)562,242,24059,192,640
Size536.2 MB 56.5 MB
Events in quadrant A2,728,824382,164
Events in quadrant B5,123,582318,480
Events in quadrant C3,482,271364,193
Events in quadrant D5,317,010338,108

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115853
B0189412
C0137092
D0196422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A554960.108128%
B554981214.633267%
C55491903.424040%
D55494888.794377%

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 7162 5550 0 0 0.00% 0.00%
B 7162 5550 660 660 9.22% 11.89%
C 7162 5550 147 147 2.05% 2.65%
D 7162 5550 428 428 5.98% 7.71%

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 207420 1589.79 644 630 130.1
A 13 6 15735 116.13 644 630 130.1
A 9 143 9794 70.45 644 630 130.1
B 5 200 2414680 21256.16 589 573 113.6
B 5 255 207741 1824.11 589 573 113.6
B 0 190 64568 563.47 589 573 113.6
C 0 10 448191 3099.04 613 616 144.4
C 14 254 397109 2745.35 613 616 144.4
C 15 214 234848 1621.84 613 616 144.4
D 12 235 1773813 11910.25 603 586 148.9
D 12 17 331530 2222.85 603 586 148.9
D 2 153 318451 2135.01 603 586 148.9

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