ASTROSAT CZTI

Data Quality Report

Orbit 14526

Creation date: 2024-06-27T16:56:25.765599
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/AS1A04_212T02_9000002140_14526cztM0_level2.evt modeM0/AS1A04_212T02_9000002140_14526cztM0_level2_quad_clean.evt
Size (bytes)490,858,560102,669,120
Size468.1 MB 97.9 MB
Events in quadrant A3,545,026663,287
Events in quadrant B3,641,781665,447
Events in quadrant C3,596,232658,998
Events in quadrant D3,612,766639,460

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150043
B0152272
C0147842
D0155722

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6922550.794568%
B6922791.141289%
C6922420.606761%
D69221381.993643%

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 7728 6924 0 0 0.00% 0.00%
B 7728 6924 17 17 0.22% 0.25%
C 7728 6924 4 4 0.05% 0.06%
D 7728 6924 51 51 0.66% 0.74%

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 8 15 296670 1770.77 818 797 167.1
A 12 189 53134 313.23 818 797 167.1
A 0 23 17134 97.78 818 797 167.1
B 0 219 105116 668.33 814 794 156.1
B 0 189 71886 455.45 814 794 156.1
B 10 16 48032 302.63 814 794 156.1
C 3 233 452801 2454.88 796 798 184.1
C 0 207 35011 185.81 796 798 184.1
C 14 234 5666 26.44 796 798 184.1
D 10 199 237988 1200.07 792 768 197.7
D 12 110 194750 981.33 792 768 197.7
D 12 233 32042 158.21 792 768 197.7

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