ASTROSAT CZTI

Data Quality Report

Orbit 43544

Creation date: 2024-06-27T22:52:59.385747
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/AS1A05_174T01_9000005880_43544cztM0_level2.fits modeM0/AS1A05_174T01_9000005880_43544cztM0_level2_quad_clean.evt
Size (bytes)1,135,739,52070,980,480
Size1.1 GB 67.7 MB
Events in quadrant A7,245,410725,041
Events in quadrant B4,705,806767,407
Events in quadrant C16,946,07685,294
Events in quadrant D12,644,328113,251

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261971
B0185171
C0548451
D0420231

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A647181312.563746%
B64722313.569221%
C6472646999.953646%
D64726472100.000000%

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 7551 6471 372 372 4.93% 5.75%
B 7552 6472 121 121 1.60% 1.87%
C 7551 6471 6148 6148 81.42% 95.01%
D 7551 6471 3651 3651 48.35% 56.42%

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 0 228 3038696 19809.4 738 724 153.4
A 10 83 745550 4856.71 738 724 153.4
A 0 226 159445 1034.96 738 724 153.4
B 3 42 622588 4193.1 754 733 148.3
B 3 25 363419 2445.55 754 733 148.3
B 0 230 113782 762.28 754 733 148.3
C 15 174 9605145 385288.22 101 101 24.9
C 15 142 4834337 193916.26 101 101 24.9
C 15 126 1193210 47859.32 101 101 24.9
D 4 216 5077488 101475.22 146 138 50.0
D 4 212 2519470 50351.02 146 138 50.0
D 14 210 589336 11775.63 146 138 50.0

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