ASTROSAT CZTI

Data Quality Report

Orbit 09990

Creation date: 2024-06-27T15:53:24.764572
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_074T01_9000001426_09990cztM0_level2.evt modeM0/AS1G07_074T01_9000001426_09990cztM0_level2_quad_clean.evt
Size (bytes)555,402,24088,453,440
Size529.7 MB 84.4 MB
Events in quadrant A3,397,541554,558
Events in quadrant B3,712,835558,826
Events in quadrant C3,274,192559,600
Events in quadrant D5,931,821488,598

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153873
B0162182
C0151802
D0227402

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7425520.700337%
B74251071.441077%
C7425320.430976%
D742587511.784512%

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 9200 7427 10 10 0.11% 0.13%
B 9200 7426 15 15 0.16% 0.20%
C 9200 7426 0 0 0.00% 0.00%
D 9200 7426 842 842 9.15% 11.34%

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 54670 305.56 857 836 176.2
A 8 15 33330 184.43 857 836 176.2
A 4 2 12085 63.85 857 836 176.2
B 4 239 150298 891.69 865 842 167.6
B 0 214 64453 379.52 865 842 167.6
B 4 81 33071 192.29 865 842 167.6
C 5 32 15713 76.79 834 839 193.7
C 13 61 6271 28.05 834 839 193.7
C 8 222 3234 12.37 834 839 193.7
D 1 52 2432353 11918.02 767 751 204.0
D 8 195 326632 1597.24 767 751 204.0
D 2 16 78605 381.59 767 751 204.0

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