ASTROSAT CZTI

Data Quality Report

Orbit 24414

Creation date: 2024-06-27T19:05:47.666144
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/AS1A07_054T01_9000003604_24414cztM0_level2.evt modeM0/AS1A07_054T01_9000003604_24414cztM0_level2_quad_clean.evt
Size (bytes)480,193,920126,924,480
Size457.9 MB 121.0 MB
Events in quadrant A3,065,860872,270
Events in quadrant B3,407,207876,895
Events in quadrant C3,144,828840,594
Events in quadrant D4,483,563801,445

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134461
B0144181
C0135691
D0177101

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6495220.338722%
B6496590.908251%
C6495570.877598%
D64954066.250962%

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 7510 6495 0 0 0.00% 0.00%
B 7511 6496 21 21 0.28% 0.32%
C 7510 6495 0 0 0.00% 0.00%
D 7510 6495 337 337 4.49% 5.19%

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 13 254 10608 61.78 794 775 159.2
A 0 226 6912 38.56 794 775 159.2
A 3 137 6853 38.19 794 775 159.2
B 15 33 127886 857.0 788 768 148.3
B 5 172 117229 785.15 788 768 148.3
B 0 190 54792 364.22 788 768 148.3
C 14 238 120162 675.16 762 766 176.8
C 10 9 39499 219.03 762 766 176.8
C 7 247 6800 34.12 762 766 176.8
D 1 52 1370367 7431.04 759 735 184.3
D 9 1 94902 510.91 759 735 184.3
D 8 195 89223 480.1 759 735 184.3

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