ASTROSAT CZTI

Data Quality Report

Orbit 09522

Creation date: 2024-06-27T15:47:13.980091
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_049T01_9000001352_09522cztM0_level2.evt modeM0/AS1G07_049T01_9000001352_09522cztM0_level2_quad_clean.evt
Size (bytes)140,509,44039,588,480
Size134.0 MB 37.8 MB
Events in quadrant A1,024,105268,354
Events in quadrant B989,077280,592
Events in quadrant C949,099272,115
Events in quadrant D1,173,378251,252

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131
B0130
C0132
D0131

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04801570
B04518417
C04335396
D05150591

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0382
B0386
C0384
D0384

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1699824.826368%
B1743854.876649%
C1739754.312823%
D17201619.360465%

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 3145 1856 0 0 0.00% 0.00%
B 3145 1874 0 0 0.00% 0.00%
C 3145 1872 0 0 0.00% 0.00%
D 3145 1843 64 64 2.03% 3.47%

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 1 162 43907 862.45 242 237 50.6
A 1 161 16510 321.38 242 237 50.6
A 1 178 16186 314.98 242 237 50.6
B 0 214 13916 286.88 247 241 47.7
B 0 219 5421 108.67 247 241 47.7
B 12 111 4770 95.01 247 241 47.7
C 13 61 1777 27.06 243 244 56.7
C 3 202 624 6.71 243 244 56.7
C 8 222 607 6.41 243 244 56.7
D 1 52 213306 3779.52 233 227 56.4
D 8 195 63717 1126.16 233 227 56.4
D 2 234 6183 105.65 233 227 56.4

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