ASTROSAT CZTI

Data Quality Report

Orbit 07308

Creation date: 2024-06-27T15:18:18.243398
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/AS1G06_137T02_9000001002_07308cztM0_level2.evt modeM0/AS1G06_137T02_9000001002_07308cztM0_level2_quad_clean.evt
Size (bytes)456,886,08094,541,760
Size435.7 MB 90.2 MB
Events in quadrant A3,120,704602,386
Events in quadrant B3,175,365626,124
Events in quadrant C2,996,689618,341
Events in quadrant D4,120,599581,151

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135043
B0135942
C0130722
D0164242

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6228500.802826%
B6228560.899165%
C6228370.594091%
D62281662.665382%

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 7534 6229 3 3 0.04% 0.05%
B 7534 6229 2 2 0.03% 0.03%
C 7534 6229 0 0 0.00% 0.00%
D 7534 6228 100 100 1.33% 1.61%

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 8 15 69699 439.42 770 755 156.9
A 13 170 53523 336.32 770 755 156.9
A 13 248 15372 93.16 770 755 156.9
B 0 214 61399 405.62 787 769 149.5
B 4 81 43388 285.13 787 769 149.5
B 12 111 14505 91.9 787 769 149.5
C 9 68 6063 29.79 765 769 177.7
C 13 61 5905 28.9 765 769 177.7
C 10 22 3744 16.74 765 769 177.7
D 2 216 413990 2232.41 750 727 185.1
D 12 233 384333 2072.2 750 727 185.1
D 2 33 219926 1184.09 750 727 185.1

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