ASTROSAT CZTI

Data Quality Report

Orbit 08050

Creation date: 2024-06-27T15:28:02.156709
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_168T15_9000001110_08050cztM0_level2.evt modeM0/AS1G06_168T15_9000001110_08050cztM0_level2_quad_clean.evt
Size (bytes)148,464,00036,164,160
Size141.6 MB 34.5 MB
Events in quadrant A907,394241,981
Events in quadrant B982,794247,319
Events in quadrant C940,118244,590
Events in quadrant D1,531,133219,352

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040652
B042441
C041301
D058891

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1945100.514139%
B1945150.771208%
C194580.411311%
D19451688.637532%

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 2785 1946 0 0 0.00% 0.00%
B 2785 1946 0 0 0.00% 0.00%
C 2785 1946 0 0 0.00% 0.00%
D 2785 1946 141 141 5.06% 7.25%

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 2188 39.9 235 229 49.1
A 12 194 2073 37.56 235 229 49.1
A 0 128 1234 20.47 235 229 49.1
B 4 81 12337 250.31 240 234 48.4
B 11 51 9175 184.91 240 234 48.4
B 14 53 7909 158.73 240 234 48.4
C 1 16 17334 301.66 236 237 56.7
C 13 61 1785 27.31 236 237 56.7
C 14 67 1462 21.61 236 237 56.7
D 1 52 535822 9455.21 222 215 56.6
D 4 95 94811 1669.93 222 215 56.6
D 2 14 23126 404.45 222 215 56.6

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