ASTROSAT CZTI

Data Quality Report

Orbit 48532

Creation date: 2024-09-18T06:53:32.474626
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/AS1A13_037T01_9000006436_48532cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48532cztM0_level2_quad_clean.evt
Size (bytes)435,265,920104,022,720
Size415.1 MB 99.2 MB
Events in quadrant A6,773,077673,107
Events in quadrant B2,975,109718,743
Events in quadrant C2,703,937692,294
Events in quadrant D3,155,278612,523

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02460882
B01379918
C01320411
D01453879

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132
B0130
C0130
D0131

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01322
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64942193.372344%
B6501721.107522%
C650180.123058%
D64941362.094241%

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 7600 6500 123 123 1.62% 1.89%
B 7600 6506 39 39 0.51% 0.60%
C 7600 6505 2 2 0.03% 0.03%
D 7600 6502 106 106 1.39% 1.63%

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 3955389 27938.54 677 664 141.6
A 12 189 180028 1267.13 677 664 141.6
A 7 3 17403 118.25 677 664 141.6
B 5 255 211457 1570.06 688 666 134.3
B 12 16 22208 160.45 688 666 134.3
B 12 111 17105 122.44 688 666 134.3
C 12 250 21259 128.18 680 685 160.5
C 3 233 15744 93.82 680 685 160.5
C 14 254 8456 48.41 680 685 160.5
D 14 34 315477 1894.25 664 645 166.2
D 2 249 99320 593.7 664 645 166.2
D 2 165 83538 498.74 664 645 166.2

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