ASTROSAT CZTI

Data Quality Report

Orbit 24287

Creation date: 2024-06-27T19:04:21.966125
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/AS1A07_047T08_9000003590_24287cztM0_level2.evt modeM0/AS1A07_047T08_9000003590_24287cztM0_level2_quad_clean.evt
Size (bytes)554,267,520136,117,440
Size528.6 MB 129.8 MB
Events in quadrant A3,132,637948,515
Events in quadrant B3,188,181973,902
Events in quadrant C3,610,594916,380
Events in quadrant D6,440,026856,177

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130732
B0132692
C0146512
D0234752

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6130140.228385%
B6130370.603589%
C6130831.353997%
D61304156.769984%

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 7425 6131 0 0 0.00% 0.00%
B 7425 6131 2 2 0.03% 0.03%
C 7425 6130 2 2 0.03% 0.03%
D 7425 6130 336 336 4.53% 5.48%

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 13 254 10220 59.02 811 799 159.6
A 0 226 6843 37.86 811 799 159.6
A 3 137 6494 35.68 811 799 159.6
B 12 111 17062 109.51 813 797 148.5
B 11 111 15082 96.18 813 797 148.5
B 14 111 13478 85.38 813 797 148.5
C 7 247 364410 2039.62 782 787 178.3
C 14 238 128301 715.25 782 787 178.3
C 2 16 67893 376.41 782 787 178.3
D 8 195 2297876 12632.99 768 747 181.8
D 1 52 1167281 6415.32 768 747 181.8
D 12 233 31429 168.73 768 747 181.8

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