ASTROSAT CZTI

Data Quality Report

Orbit 06932

Creation date: 2024-06-27T15:13:20.505296
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_103T01_9000000950_06932cztM0_level2.evt modeM0/AS1A02_103T01_9000000950_06932cztM0_level2_quad_clean.evt
Size (bytes)704,013,12062,173,440
Size671.4 MB 59.3 MB
Events in quadrant A3,288,507393,361
Events in quadrant B3,765,721394,127
Events in quadrant C10,026,470266,826
Events in quadrant D3,803,914377,275

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137033
B0152452
C0343212
D0153502

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6453891.379203%
B64531171.813110%
C6453285144.181001%
D64531001.549667%

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 7733 6454 0 0 0.00% 0.00%
B 7733 6454 10 10 0.13% 0.15%
C 7733 6453 2342 2342 30.29% 36.29%
D 7733 6454 15 15 0.19% 0.23%

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 8153 42.89 851 835 170.6
A 12 194 8126 42.74 851 835 170.6
A 13 14 4880 23.71 851 835 170.6
B 0 228 268244 1683.45 847 830 158.8
B 4 48 124844 780.71 847 830 158.8
B 0 214 32942 202.15 847 830 158.8
C 9 247 7604142 53946.8 615 619 140.9
C 10 22 13547 91.72 615 619 140.9
C 12 4 6972 45.07 615 619 140.9
D 8 195 218878 1092.05 829 805 199.7
D 2 136 169884 846.7 829 805 199.7
D 2 152 93386 463.62 829 805 199.7

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