ASTROSAT CZTI

Data Quality Report

Orbit 33573

Creation date: 2024-06-27T20:50:18.666427
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/AS1A11_060T01_9000004808_33573cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33573cztM0_level2_quad_clean.evt
Size (bytes)567,457,92068,086,080
Size541.2 MB 64.9 MB
Events in quadrant A3,268,905421,121
Events in quadrant B3,964,164414,203
Events in quadrant C4,634,811415,877
Events in quadrant D4,914,479393,846

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135592
B0155641
C0182701
D0186171

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5964120.201207%
B59642995.013414%
C59641402.347418%
D59643065.130785%

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 8772 5966 2 2 0.02% 0.03%
B 8772 5966 253 253 2.88% 4.24%
C 8772 5966 111 111 1.27% 1.86%
D 8772 5966 240 240 2.74% 4.02%

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 15 169 567336 4058.18 696 682 139.6
A 13 254 10964 73.64 696 682 139.6
A 3 137 6981 45.11 696 682 139.6
B 5 172 994047 7529.65 681 662 131.9
B 5 255 116933 881.31 681 662 131.9
B 15 222 71425 536.37 681 662 131.9
C 3 233 1487905 9489.9 674 678 156.7
C 15 214 253614 1613.97 674 678 156.7
C 0 10 176840 1124.08 674 678 156.7
D 8 195 1266854 7758.44 663 644 163.2
D 2 250 414899 2538.26 663 644 163.2
D 13 249 397831 2433.68 663 644 163.2

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