ASTROSAT CZTI

Data Quality Report

Orbit 34083

Creation date: 2024-06-27T20:56:19.088426
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/AS1C07_001T04_9000004868_34083cztM0_level2.evt modeM0/AS1C07_001T04_9000004868_34083cztM0_level2_quad_clean.evt
Size (bytes)76,671,36013,642,560
Size73.1 MB 13.0 MB
Events in quadrant A402,52792,524
Events in quadrant B707,36690,611
Events in quadrant C494,82386,588
Events in quadrant D663,89683,512

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016602
B026331
C018901
D024701

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74410.134409%
B7448411.290323%
C744314.166667%
D744212.822581%

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 743 743 0 0 0.00% 0.00%
B 744 744 60 60 8.06% 8.06%
C 744 744 26 26 3.49% 3.49%
D 743 743 13 13 1.75% 1.75%

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 48344 2350.14 90 88 20.5
A 10 83 5800 278.18 90 88 20.5
A 13 254 1457 66.67 90 88 20.5
B 5 31 134701 7011.87 86 84 19.2
B 0 219 53442 2779.29 86 84 19.2
B 5 15 49722 2585.52 86 84 19.2
C 0 10 111454 5265.56 83 84 21.2
C 15 214 36514 1722.41 83 84 21.2
C 3 233 10212 478.85 83 84 21.2
D 8 195 188124 8257.75 85 82 22.8
D 12 233 29947 1311.5 85 82 22.8
D 13 249 27275 1194.16 85 82 22.8

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