ASTROSAT CZTI

Data Quality Report

Orbit 34463

Creation date: 2022-02-12T09:46:45.061434
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/AS1A10_058T06_9000004920_34463cztM0_level2.evt modeM0/AS1A10_058T06_9000004920_34463cztM0_level2_quad_clean.evt
Size (bytes)443,534,40056,678,400
Size423.0 MB 54.1 MB
Events in quadrant A2,684,983341,249
Events in quadrant B3,064,707345,811
Events in quadrant C2,856,475340,606
Events in quadrant D4,468,036318,439

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112253
B0123222
C0115032
D0170652

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A527970.132601%
B5279551.041864%
C5279190.359917%
D52801552.935606%

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 7102 5280 3 3 0.04% 0.06%
B 7102 5280 29 29 0.41% 0.55%
C 7102 5280 7 7 0.10% 0.13%
D 7103 5281 119 119 1.68% 2.25%

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 36469 267.47 667 654 133.9
A 15 169 33914 248.39 667 654 133.9
A 13 6 33107 242.36 667 654 133.9
B 5 172 229577 1829.39 656 639 125.1
B 0 229 106692 847.44 656 639 125.1
B 5 31 93065 738.55 656 639 125.1
C 15 214 225030 1500.22 646 652 149.6
C 0 10 45147 297.5 646 652 149.6
C 15 208 37140 243.96 646 652 149.6
D 8 195 1176714 7433.88 644 628 158.2
D 2 250 276092 1741.17 644 628 158.2
D 2 249 184041 1159.33 644 628 158.2

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