ASTROSAT CZTI

Data Quality Report

Orbit 43443

Creation date: 2024-06-27T22:52:02.397549
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/AS1A12_018T01_9000005874_43443cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43443cztM0_level2_quad_clean.evt
Size (bytes)477,210,24079,096,320
Size455.1 MB 75.4 MB
Events in quadrant A8,015,050298,441
Events in quadrant B3,073,187604,352
Events in quadrant C2,498,729590,467
Events in quadrant D3,669,358534,415

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0273122
B0126742
C0107562
D0145743

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5241265050.562870%
B52411643.129174%
C524140.076321%
D52401372.614504%

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 7124 5242 2051 2051 28.79% 39.13%
B 7124 5242 147 147 2.06% 2.80%
C 7124 5242 2 2 0.03% 0.04%
D 7123 5241 131 131 1.84% 2.50%

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 15 222 5992569 83109.11 349 342 72.1
A 10 83 377040 5224.61 349 342 72.1
A 15 237 270547 3747.6 349 342 72.1
B 4 36 314117 2902.94 566 550 108.0
B 0 189 221340 2044.03 566 550 108.0
B 0 190 118572 1092.62 566 550 108.0
C 15 214 215962 1634.12 567 569 131.8
C 3 233 42161 315.55 567 569 131.8
C 14 254 14804 108.0 567 569 131.8
D 1 52 688567 5070.43 557 542 135.7
D 2 16 285915 2103.07 557 542 135.7
D 13 249 180860 1328.86 557 542 135.7

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