ASTROSAT CZTI

Data Quality Report

Orbit 28113

Creation date: 2024-06-27T19:48:11.645034
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/AS1A10_057T05_9000004060_28113cztM0_level2.evt modeM0/AS1A10_057T05_9000004060_28113cztM0_level2_quad_clean.evt
Size (bytes)329,693,76037,497,600
Size314.4 MB 35.8 MB
Events in quadrant A1,861,437225,944
Events in quadrant B2,005,352225,695
Events in quadrant C1,918,087214,486
Events in quadrant D3,945,042204,067

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077120
B082130
C079090
D0143740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3746360.961025%
B3746491.308062%
C3746571.521623%
D37462245.979712%

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 3746 3746 0 0 0.00% 0.00%
B 3746 3746 0 0 0.00% 0.00%
C 3746 3746 4 4 0.11% 0.11%
D 3746 3746 164 164 4.38% 4.38%

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 6630 62.67 482 472 98.3
A 3 137 4457 40.55 482 472 98.3
A 0 226 4128 37.21 482 472 98.3
B 15 32 124372 1349.29 470 459 91.8
B 4 200 15816 167.22 470 459 91.8
B 0 230 12118 126.95 470 459 91.8
C 14 238 74543 689.76 456 459 107.4
C 15 208 59675 551.33 456 459 107.4
C 3 233 7760 67.98 456 459 107.4
D 7 223 1311656 11892.33 459 448 110.3
D 8 195 411536 3728.46 459 448 110.3
D 2 250 255841 2316.35 459 448 110.3

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