ASTROSAT CZTI

Data Quality Report

Orbit 43226

Creation date: 2024-06-27T22:49:31.168559
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/AS1A06_006T01_9000005860_43226cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43226cztM0_level2_quad_clean.evt
Size (bytes)332,562,24091,270,080
Size317.2 MB 87.0 MB
Events in quadrant A3,755,380591,721
Events in quadrant B2,353,748638,688
Events in quadrant C2,544,463608,019
Events in quadrant D3,237,940548,775

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145792
B0107942
C0108052
D0132532

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53762234.148065%
B537650.093006%
C537620.037202%
D5376991.841518%

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 7289 5377 203 203 2.79% 3.78%
B 7289 5377 0 0 0.00% 0.00%
C 7289 5377 0 0 0.00% 0.00%
D 7289 5377 94 94 1.29% 1.75%

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 566600 4697.28 588 576 120.5
A 15 237 499764 4142.63 588 576 120.5
A 13 248 285673 2365.95 588 576 120.5
B 12 111 14223 117.03 596 580 116.6
B 11 111 13477 110.63 596 580 116.6
B 5 255 13044 106.92 596 580 116.6
C 15 214 224561 1611.53 592 596 139.0
C 14 254 8063 53.73 592 596 139.0
C 13 61 3936 24.03 592 596 139.0
D 12 16 434698 3044.18 584 568 142.6
D 1 52 286569 2005.48 584 568 142.6
D 13 249 129416 903.5 584 568 142.6

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