ASTROSAT CZTI

Data Quality Report

Orbit 28409

Creation date: 2024-06-27T19:51:27.592969
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_058T13_9000004088_28409cztM0_level2.evt modeM0/AS1A10_058T13_9000004088_28409cztM0_level2_quad_clean.evt
Size (bytes)2,466,915,840379,765,440
Size2.3 GB 362.2 MB
Events in quadrant A13,999,5372,443,398
Events in quadrant B15,790,4802,463,094
Events in quadrant C14,080,2022,362,720
Events in quadrant D28,863,1672,215,410

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0604860
B0653940
C0606330
D01048340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A293474221.437966%
B293476532.225100%
C293475942.024057%
D29347341011.619586%

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 32147 29347 4 4 0.01% 0.01%
B 32147 29347 110 110 0.34% 0.37%
C 32147 29348 3 3 0.01% 0.01%
D 32147 29348 3001 3001 9.34% 10.23%

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 73369 96.88 3595 3512 721.1
A 13 254 44894 57.39 3595 3512 721.1
A 3 137 36575 45.85 3595 3512 721.1
B 10 245 1579951 2311.39 3556 3465 682.0
B 0 230 155965 223.59 3556 3465 682.0
B 12 111 87153 122.7 3556 3465 682.0
C 14 238 553057 678.05 3435 3456 810.6
C 7 220 115362 138.06 3435 3456 810.6
C 13 61 23578 24.82 3435 3456 810.6
D 8 195 9553370 11801.62 3367 3276 809.2
D 1 52 5595320 6910.42 3367 3276 809.2
D 2 250 558239 685.8 3367 3276 809.2

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