ASTROSAT CZTI

Data Quality Report

Orbit 23084

Creation date: 2024-06-27T18:49:32.396149
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/AS1A07_049T01_9000003408_23084cztM0_level2.evt modeM0/AS1A07_049T01_9000003408_23084cztM0_level2_quad_clean.evt
Size (bytes)447,022,08088,692,480
Size426.3 MB 84.6 MB
Events in quadrant A3,109,203567,785
Events in quadrant B3,067,504585,796
Events in quadrant C3,429,801554,465
Events in quadrant D3,513,054547,667

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132391
B0129801
C0139631
D0143543

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6157310.503492%
B6158430.698279%
C61581592.582007%
D6157741.201884%

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 7292 6158 0 0 0.00% 0.00%
B 7293 6159 8 8 0.11% 0.13%
C 7293 6159 58 58 0.80% 0.94%
D 7292 6158 37 37 0.51% 0.60%

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 6 16 183756 1192.66 759 741 153.5
A 13 254 8738 52.11 759 741 153.5
A 0 226 6578 38.04 759 741 153.5
B 4 173 33352 228.25 759 740 142.9
B 4 216 24125 163.67 759 740 142.9
B 12 111 17369 116.39 759 740 142.9
C 0 10 348963 2028.94 735 739 171.6
C 14 238 115984 671.48 735 739 171.6
C 2 16 59478 342.24 735 739 171.6
D 1 52 508899 2790.39 747 726 182.1
D 7 238 87308 475.42 747 726 182.1
D 9 85 52919 286.59 747 726 182.1

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