ASTROSAT CZTI

Data Quality Report

Orbit 33102

Creation date: 2024-06-27T20:44:51.915693
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/AS1A11_008T06_9000004762_33102cztM0_level2.evt modeM0/AS1A11_008T06_9000004762_33102cztM0_level2_quad_clean.evt
Size (bytes)656,308,80095,601,600
Size625.9 MB 91.2 MB
Events in quadrant A2,893,317668,665
Events in quadrant B3,540,987655,995
Events in quadrant C5,494,627589,484
Events in quadrant D7,550,781570,296

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121293
B0141032
C0200492
D0266922

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A586690.153427%
B58661953.324241%
C5866103617.661098%
D5866105317.950904%

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 9363 5868 0 0 0.00% 0.00%
B 9363 5868 121 121 1.29% 2.06%
C 9363 5868 820 820 8.76% 13.97%
D 9363 5868 1026 1026 10.96% 17.48%

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 13 6 16471 106.67 740 729 147.6
A 15 169 13210 84.57 740 729 147.6
A 13 254 10318 64.98 740 729 147.6
B 5 172 503584 3694.92 720 703 136.1
B 0 189 88012 641.5 720 703 136.1
B 5 200 40172 290.0 720 703 136.1
C 8 111 2146478 14226.89 654 659 150.8
C 1 23 386021 2554.97 654 659 150.8
C 0 10 263834 1744.86 654 659 150.8
D 7 223 2227497 12853.74 670 656 173.2
D 8 195 925457 5338.12 670 656 173.2
D 12 218 617834 3562.46 670 656 173.2

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