ASTROSAT CZTI

Data Quality Report

Orbit 44444

Creation date: 2024-06-27T23:01:10.990470
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/AS1A13_080T05_9000005980_44444cztM0_level2.fits modeM0/AS1A13_080T05_9000005980_44444cztM0_level2_quad_clean.evt
Size (bytes)115,721,28030,493,440
Size110.4 MB 29.1 MB
Events in quadrant A1,253,204207,032
Events in quadrant B843,078214,439
Events in quadrant C833,663202,820
Events in quadrant D1,215,612171,916

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051000
B037070
C037180
D049040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A174040.229885%
B1740201.149425%
C174140.229753%
D17411538.788053%

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 1740 1740 0 0 0.00% 0.00%
B 1740 1740 13 13 0.75% 0.75%
C 1741 1741 2 2 0.11% 0.11%
D 1741 1741 119 119 6.84% 6.84%

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 10 83 450095 10889.84 192 188 41.3
A 15 235 59181 1427.91 192 188 41.3
A 8 4 2310 51.36 192 188 41.3
B 5 255 41453 1041.46 191 186 39.6
B 5 172 27682 693.92 191 186 39.6
B 0 168 11100 275.44 191 186 39.6
C 14 254 63965 1427.29 185 186 44.7
C 2 14 37114 826.4 185 186 44.7
C 3 233 6482 140.9 185 186 44.7
D 12 17 254351 5618.69 176 171 45.2
D 2 249 198737 4389.34 176 171 45.2
D 13 249 44745 985.32 176 171 45.2

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