ASTROSAT CZTI

Data Quality Report

Orbit 28148

Creation date: 2024-06-27T19:48:35.013161
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_045T04_9000004066_28148cztM0_level2.evt modeM0/AS1A10_045T04_9000004066_28148cztM0_level2_quad_clean.evt
Size (bytes)508,512,96082,157,760
Size485.0 MB 78.4 MB
Events in quadrant A3,177,784519,017
Events in quadrant B3,396,383522,633
Events in quadrant C3,358,197504,899
Events in quadrant D5,013,122474,034

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137490
B0143030
C0142110
D0194560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6700390.582090%
B67001001.492537%
C6700841.253731%
D67005498.194030%

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 7565 6701 0 0 0.00% 0.00%
B 7565 6701 49 49 0.65% 0.73%
C 7565 6701 2 2 0.03% 0.03%
D 7565 6701 443 443 5.86% 6.61%

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 13 254 11295 63.17 823 804 166.1
A 3 137 8179 44.41 823 804 166.1
A 0 226 7140 38.15 823 804 166.1
B 10 245 151214 950.8 814 795 158.2
B 12 111 19694 119.46 814 795 158.2
B 11 111 18180 109.89 814 795 158.2
C 14 238 126762 676.62 791 797 186.2
C 3 233 99739 531.46 791 797 186.2
C 2 16 31814 166.61 791 797 186.2
D 1 52 1386049 7501.62 769 746 184.7
D 8 195 256956 1387.41 769 746 184.7
D 2 250 174907 943.11 769 746 184.7

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