ASTROSAT CZTI

Data Quality Report

Orbit 30051

Creation date: 2024-06-27T20:10:16.646962
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_071T09_9000004320_30051cztM0_level2.evt modeM0/AS1A10_071T09_9000004320_30051cztM0_level2_quad_clean.evt
Size (bytes)523,892,16070,038,720
Size499.6 MB 66.8 MB
Events in quadrant A3,400,444434,079
Events in quadrant B5,151,768434,424
Events in quadrant C3,535,486409,320
Events in quadrant D3,356,836408,354

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135822
B0193292
C0139912
D0134482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6226861.381304%
B62261502.409252%
C62261282.055895%
D6226410.658529%

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 7496 6227 1 1 0.01% 0.02%
B 7496 6227 2 2 0.03% 0.03%
C 7496 6227 11 11 0.15% 0.18%
D 7496 6227 4 4 0.05% 0.06%

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 8 192 24523 137.5 873 859 172.1
A 13 254 11596 62.39 873 859 172.1
A 12 96 8710 45.62 873 859 172.1
B 6 159 1661105 10289.86 858 839 161.3
B 5 255 117750 724.58 858 839 161.3
B 12 111 19630 116.46 858 839 161.3
C 14 238 138156 721.34 819 826 190.4
C 3 233 115162 600.56 819 826 190.4
C 15 208 75160 390.45 819 826 190.4
D 8 195 148445 768.0 826 810 192.2
D 2 250 31612 160.23 826 810 192.2
D 7 223 22665 113.69 826 810 192.2

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