ASTROSAT CZTI

Data Quality Report

Orbit 04151

Creation date: 2024-06-27T14:38:04.749340
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/AS1G05_240T01_9000000536_04151cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04151cztM0_level2_quad_clean.evt
Size (bytes)406,915,20067,043,520
Size388.1 MB 63.9 MB
Events in quadrant A3,066,558402,490
Events in quadrant B3,020,398407,413
Events in quadrant C2,809,943397,056
Events in quadrant D3,001,310386,716

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131012
B0130371
C0127021
D0133831

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6254681.087304%
B6254410.655580%
C6254140.223857%
D6254380.607611%

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 7379 6255 24 24 0.33% 0.38%
B 7379 6255 3 3 0.04% 0.05%
C 7379 6255 0 0 0.00% 0.00%
D 7379 6255 14 14 0.19% 0.22%

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 50 93093 603.2 745 728 153.1
A 3 1 35375 226.27 745 728 153.1
A 8 15 33957 217.01 745 728 153.1
B 4 81 48891 333.57 749 732 144.4
B 4 48 26811 180.63 749 732 144.4
B 15 204 14505 95.4 749 732 144.4
C 1 16 9752 53.98 715 719 167.4
C 13 61 5940 31.2 715 719 167.4
C 10 65 4451 22.3 715 719 167.4
D 12 79 64740 369.43 721 702 173.3
D 12 233 53641 305.4 721 702 173.3
D 13 137 32783 185.07 721 702 173.3

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