ASTROSAT CZTI

Data Quality Report

Orbit 09378

Creation date: 2024-06-27T15:45:16.555811
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/AS1A03_057T01_9000001330_09378cztM0_level2.evt modeM0/AS1A03_057T01_9000001330_09378cztM0_level2_quad_clean.evt
Size (bytes)494,861,760109,624,320
Size471.9 MB 104.5 MB
Events in quadrant A3,798,725738,668
Events in quadrant B3,309,673746,950
Events in quadrant C2,991,398714,102
Events in quadrant D4,451,471672,711

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154543
B0141042
C0132822
D0175312

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64101231.918877%
B6410731.138846%
C6410380.592824%
D64104376.817473%

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 7675 6411 21 21 0.27% 0.33%
B 7675 6411 0 0 0.00% 0.00%
C 7675 6411 0 0 0.00% 0.00%
D 7675 6411 321 321 4.18% 5.01%

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 5 536299 3312.58 806 790 161.7
A 5 16 115061 706.86 806 790 161.7
A 1 162 21026 125.18 806 790 161.7
B 0 214 66998 437.48 805 789 151.3
B 4 173 42449 275.27 805 789 151.3
B 0 219 40572 262.87 805 789 151.3
C 10 22 16566 90.43 761 763 174.8
C 13 61 5798 28.81 761 763 174.8
C 8 222 3200 13.94 761 763 174.8
D 1 52 913871 4620.23 744 727 197.6
D 12 233 258255 1303.01 744 727 197.6
D 8 195 237742 1199.22 744 727 197.6

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