ASTROSAT CZTI

Data Quality Report

Orbit 15444

Creation date: 2024-06-27T17:08:36.856276
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/AS1T02_080T01_9000002276_15444cztM0_level2.evt modeM0/AS1T02_080T01_9000002276_15444cztM0_level2_quad_clean.evt
Size (bytes)378,838,08067,420,800
Size361.3 MB 64.3 MB
Events in quadrant A1,907,607466,661
Events in quadrant B1,918,038473,644
Events in quadrant C1,959,986468,223
Events in quadrant D5,443,757379,166

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A078840
B078740
C080320
D0186090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3578280.782560%
B3578100.279486%
C357820.055897%
D3578122934.348798%

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 3578 3578 15 15 0.42% 0.42%
B 3578 3578 2 2 0.06% 0.06%
C 3578 3578 0 0 0.00% 0.00%
D 3578 3578 1167 1167 32.62% 32.62%

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 14 238 96321 1030.27 458 450 93.1
A 14 237 38189 405.56 458 450 93.1
A 9 143 7555 76.35 458 450 93.1
B 4 142 73781 859.1 454 445 85.4
B 3 209 14930 169.69 454 445 85.4
B 0 189 10372 116.29 454 445 85.4
C 3 233 259803 2596.02 435 439 99.9
C 13 61 3199 27.63 435 439 99.9
C 10 22 1618 11.8 435 439 99.9
D 1 52 3910236 41418.33 386 375 94.4
D 7 38 26397 275.66 386 375 94.4
D 5 222 18364 190.56 386 375 94.4

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