ASTROSAT CZTI

Data Quality Report

Orbit 21014

Creation date: 2024-06-27T18:22:25.823125
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/AS1A05_101T08_9000003102_21014cztM0_level2.evt modeM0/AS1A05_101T08_9000003102_21014cztM0_level2_quad_clean.evt
Size (bytes)211,152,96035,208,000
Size201.4 MB 33.6 MB
Events in quadrant A1,462,887216,431
Events in quadrant B1,639,671223,273
Events in quadrant C1,485,825217,516
Events in quadrant D1,609,693203,850

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060701
B065831
C060431
D065591

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2863270.943067%
B2863762.654558%
C2863321.117709%
D2863501.746420%

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 3998 2864 0 0 0.00% 0.00%
B 3998 2864 30 30 0.75% 1.05%
C 3998 2864 0 0 0.00% 0.00%
D 3998 2864 32 32 0.80% 1.12%

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 0 226 3370 38.69 379 372 77.5
A 3 137 3240 37.01 379 372 77.5
A 12 194 2766 30.9 379 372 77.5
B 7 220 102479 1400.61 379 370 72.9
B 0 189 28012 379.16 379 370 72.9
B 12 111 8780 115.36 379 370 72.9
C 14 238 56933 653.58 365 368 86.5
C 9 54 3345 34.4 365 368 86.5
C 13 61 2561 25.34 365 368 86.5
D 1 52 58632 650.19 365 354 89.6
D 7 238 55362 613.71 365 354 89.6
D 13 200 36494 403.2 365 354 89.6

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