ASTROSAT CZTI

Data Quality Report

Orbit 08014

Creation date: 2024-06-27T15:26:52.661297
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_154T02_9000001102_08014cztM0_level2.evt modeM0/AS1G06_154T02_9000001102_08014cztM0_level2_quad_clean.evt
Size (bytes)153,028,80020,882,880
Size145.9 MB 19.9 MB
Events in quadrant A1,089,516120,068
Events in quadrant B1,105,914122,800
Events in quadrant C1,076,823120,472
Events in quadrant D1,218,727117,745

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A045102
B045751
C044761
D050361

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2081351.681884%
B2081311.489668%
C2081301.441615%
D2081411.970207%

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 3176 2082 0 0 0.00% 0.00%
B 3176 2082 0 0 0.00% 0.00%
C 3176 2082 0 0 0.00% 0.00%
D 3176 2082 1 1 0.03% 0.05%

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 0 226 2702 40.7 283 277 59.6
A 12 194 2381 35.32 283 277 59.6
A 3 137 1159 14.8 283 277 59.6
B 12 111 6185 105.6 284 277 55.9
B 11 111 5131 86.76 284 277 55.9
B 14 111 3687 60.95 284 277 55.9
C 1 16 2751 37.92 274 275 65.3
C 13 61 2129 28.39 274 275 65.3
C 8 222 990 10.95 274 275 65.3
D 11 144 135886 2010.49 274 267 67.5
D 1 52 38206 562.43 274 267 67.5
D 5 97 5694 80.45 274 267 67.5

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