ASTROSAT CZTI

Data Quality Report

Orbit 33601

Creation date: 2024-06-27T20:50:39.419121
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/AS1A11_060T01_9000004808_33601cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33601cztM0_level2_quad_clean.evt
Size (bytes)572,016,96068,584,320
Size545.5 MB 65.4 MB
Events in quadrant A3,230,403422,347
Events in quadrant B4,833,466401,933
Events in quadrant C3,901,059413,652
Events in quadrant D4,930,374396,940

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136653
B0185092
C0153812
D0188932

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6336600.946970%
B63365588.806818%
C6336791.246843%
D63361602.525253%

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 9622 6338 25 25 0.26% 0.39%
B 9622 6338 421 421 4.38% 6.64%
C 9622 6338 70 70 0.73% 1.10%
D 9622 6338 136 136 1.41% 2.15%

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 15 169 352807 2360.87 743 729 149.1
A 13 254 9746 60.46 743 729 149.1
A 3 137 7592 46.02 743 729 149.1
B 5 172 1440407 10266.14 718 698 140.2
B 15 222 233712 1661.55 718 698 140.2
B 5 255 222776 1583.57 718 698 140.2
C 3 233 422099 2501.07 723 728 168.5
C 0 10 274230 1623.38 723 728 168.5
C 15 214 271381 1606.47 723 728 168.5
D 8 195 1308365 7416.05 717 697 176.3
D 2 250 292106 1652.64 717 697 176.3
D 2 120 204781 1157.4 717 697 176.3

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