ASTROSAT CZTI

Data Quality Report

Orbit 08035

Creation date: 2024-06-27T15:27:09.401965
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/AS1A02_080T01_9000001104_08035cztM0_level2.evt modeM0/AS1A02_080T01_9000001104_08035cztM0_level2_quad_clean.evt
Size (bytes)35,112,9609,348,480
Size33.5 MB 8.9 MB
Events in quadrant A238,16061,326
Events in quadrant B335,10862,304
Events in quadrant C226,70262,110
Events in quadrant D230,35558,423

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09690
B012830
C09380
D09660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A43871.598174%
B438347.762557%
C43820.456621%
D43840.913242%

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 438 438 0 0 0.00% 0.00%
B 438 438 22 22 5.02% 5.02%
C 438 438 0 0 0.00% 0.00%
D 438 438 0 0 0.00% 0.00%

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 15 234 7100 498.25 58 57 14.1
A 8 6 2174 149.77 58 57 14.1
A 4 2 2080 143.12 58 57 14.1
B 4 239 92958 6850.98 59 58 13.6
B 11 51 5524 403.09 59 58 13.6
B 0 214 3560 258.26 59 58 13.6
C 1 16 3075 200.6 57 57 15.0
C 1 3 494 29.05 57 57 15.0
C 7 159 448 25.99 57 57 15.0
D 13 169 6969 432.6 55 53 16.0
D 12 233 4744 293.42 55 53 16.0
D 1 52 2367 144.74 55 53 16.0

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