ASTROSAT CZTI

Data Quality Report

Orbit 08750

Creation date: 2024-06-27T15:36:42.050416
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/AS1G07_013T02_9000001216_08750cztM0_level2.evt modeM0/AS1G07_013T02_9000001216_08750cztM0_level2_quad_clean.evt
Size (bytes)676,316,160139,717,440
Size645.0 MB 133.2 MB
Events in quadrant A4,628,915890,434
Events in quadrant B5,150,557898,674
Events in quadrant C4,378,651890,033
Events in quadrant D5,638,380851,859

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02060
B02060
C02060
D02060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209852
B0221652
C0205434
D0238206

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A101091861.839945%
B101093363.323771%
C101081111.098140%
D101072602.572475%

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 10944 10110 23 23 0.21% 0.23%
B 10944 10110 133 133 1.22% 1.32%
C 10944 10110 1 1 0.01% 0.01%
D 10944 10110 123 123 1.12% 1.22%

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 5 16 125003 531.3 1140 1112 233.2
A 15 174 45278 189.4 1140 1112 233.2
A 13 251 38364 159.75 1140 1112 233.2
B 10 16 498158 2285.86 1146 1116 217.4
B 0 214 89618 407.01 1146 1116 217.4
B 4 48 68826 311.39 1146 1116 217.4
C 14 234 14204 50.47 1113 1115 259.3
C 1 16 13262 46.84 1113 1115 259.3
C 14 64 8545 28.65 1113 1115 259.3
D 1 52 930585 3211.24 1098 1068 289.5
D 2 152 210577 723.8 1098 1068 289.5
D 7 71 98077 335.14 1098 1068 289.5

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