ASTROSAT CZTI

Data Quality Report

Orbit 10425

Creation date: 2024-06-27T15:59:46.353305
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/AS1G07_066T01_9000001510_10425cztM0_level2.evt modeM0/AS1G07_066T01_9000001510_10425cztM0_level2_quad_clean.evt
Size (bytes)687,355,20082,497,600
Size655.5 MB 78.7 MB
Events in quadrant A7,309,507457,441
Events in quadrant B4,940,565513,066
Events in quadrant C3,341,321527,348
Events in quadrant D4,731,437491,375

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017419
B017417
C017418
D017316

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042
B042
C042
D042

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0325145762
B0230883579
C0185473422
D0225453837

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A707775210.625971%
B73403945.367847%
C7388490.663238%
D73141061.449275%

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 8003 7081 510 510 6.37% 7.20%
B 8003 7418 223 223 2.79% 3.01%
C 8003 7468 7 7 0.09% 0.09%
D 8004 7426 60 60 0.75% 0.81%

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 13 251 4124337 24857.58 806 788 165.9
A 3 80 56864 338.04 806 788 165.9
A 8 15 12029 67.76 806 788 165.9
B 4 239 1378407 8546.16 845 821 161.2
B 4 81 129756 799.88 845 821 161.2
B 0 214 72725 446.07 845 821 161.2
C 14 234 21737 106.38 848 849 196.4
C 13 61 6263 27.57 848 849 196.4
C 8 128 4073 16.42 848 849 196.4
D 8 195 764361 3790.52 834 812 201.4
D 5 222 461836 2288.68 834 812 201.4
D 1 52 198032 979.07 834 812 201.4

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