ASTROSAT CZTI

Data Quality Report

Orbit 18214

Creation date: 2024-06-27T17:46:51.697818
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/AS1T03_003T01_9000002712_18214cztM0_level2.evt modeM0/AS1T03_003T01_9000002712_18214cztM0_level2_quad_clean.evt
Size (bytes)637,600,32083,465,280
Size608.1 MB 79.6 MB
Events in quadrant A4,425,874520,515
Events in quadrant B3,548,310541,705
Events in quadrant C3,383,214524,781
Events in quadrant D7,472,814446,782

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179241
B0151571
C0146231
D0270521

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70844316.084133%
B70851381.947777%
C70851191.679605%
D7085117416.570219%

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 7324 7085 250 250 3.41% 3.53%
B 7325 7086 10 10 0.14% 0.14%
C 7325 7086 0 0 0.00% 0.00%
D 7325 7086 877 877 11.97% 12.38%

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 15 174 1180759 6926.22 835 816 170.4
A 4 2 14764 81.87 835 816 170.4
A 11 47 13902 76.81 835 816 170.4
B 7 220 113340 687.39 851 832 163.7
B 0 197 40770 244.01 851 832 163.7
B 15 35 21767 127.91 851 832 163.7
C 14 238 127217 653.79 820 826 193.3
C 3 233 49353 251.02 820 826 193.3
C 0 207 6714 30.46 820 826 193.3
D 5 222 2610564 13758.32 768 744 189.7
D 1 52 1516717 7991.83 768 744 189.7
D 7 238 271204 1425.8 768 744 189.7

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