ASTROSAT CZTI

Data Quality Report

Orbit 09763

Creation date: 2024-06-27T15:50:21.509906
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/AS1A03_080T01_9000001392_09763cztM0_level2.evt modeM0/AS1A03_080T01_9000001392_09763cztM0_level2_quad_clean.evt
Size (bytes)588,934,080121,792,320
Size561.7 MB 116.2 MB
Events in quadrant A4,149,229777,535
Events in quadrant B4,308,952777,260
Events in quadrant C3,936,825768,908
Events in quadrant D4,823,730735,367

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259837484
B0262967508
C0255287308
D0286448142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132
B0131
C0133
D0132

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A025852
B025868
C025655
D025767

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9046510.563785%
B9006650.721741%
C9004150.166593%
D8973620.690962%

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 13942 10304 3 3 0.02% 0.03%
B 13941 10303 5 5 0.04% 0.05%
C 13942 10291 0 0 0.00% 0.00%
D 13942 10263 43 43 0.31% 0.42%

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 15 174 42522 191.87 1053 1027 216.3
A 14 111 27628 123.0 1053 1027 216.3
A 8 15 21425 94.32 1053 1027 216.3
B 0 214 60161 293.6 1048 1021 201.4
B 10 245 49569 241.02 1048 1021 201.4
B 0 229 39141 189.25 1048 1021 201.4
C 13 61 7460 27.6 1007 1010 233.7
C 8 222 4951 16.86 1007 1010 233.7
C 14 67 2789 7.61 1007 1010 233.7
D 1 52 782969 3120.12 999 973 250.6
D 7 71 73412 289.03 999 973 250.6
D 2 152 60846 238.89 999 973 250.6

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