ASTROSAT CZTI

Data Quality Report

Orbit 16632

Creation date: 2024-06-27T17:25:23.104425
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/AS1A05_064T01_9000002450_16632cztM0_level2.evt modeM0/AS1A05_064T01_9000002450_16632cztM0_level2_quad_clean.evt
Size (bytes)455,878,080128,280,960
Size434.8 MB 122.3 MB
Events in quadrant A3,036,683866,052
Events in quadrant B3,454,269878,297
Events in quadrant C3,509,935864,741
Events in quadrant D3,385,697845,086

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130713
B0144062
C0143962
D0141112

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6168851.378080%
B61681252.026589%
C61681552.512970%
D6168921.491569%

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 7439 6170 0 0 0.00% 0.00%
B 7439 6170 17 17 0.23% 0.28%
C 7439 6170 0 0 0.00% 0.00%
D 7439 6170 18 18 0.24% 0.29%

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 68788 442.48 770 752 153.8
A 0 226 6856 39.7 770 752 153.8
A 12 194 5833 33.05 770 752 153.8
B 0 85 127666 884.67 775 755 143.5
B 0 189 104865 725.73 775 755 143.5
B 15 35 65599 452.01 775 755 143.5
C 3 233 409539 2348.41 759 766 174.1
C 14 238 117203 668.93 759 766 174.1
C 7 247 17484 96.05 759 766 174.1
D 5 222 258353 1403.06 765 744 183.6
D 10 70 127597 690.9 765 744 183.6
D 1 52 87145 470.58 765 744 183.6

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