ASTROSAT CZTI

Data Quality Report

Orbit 06529

Creation date: 2024-06-27T15:08:27.659992
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_136T02_9000000876_06529cztM0_level2.evt modeM0/AS1G06_136T02_9000000876_06529cztM0_level2_quad_clean.evt
Size (bytes)396,898,56080,524,800
Size378.5 MB 76.8 MB
Events in quadrant A2,965,316505,766
Events in quadrant B3,011,079516,752
Events in quadrant C2,704,602504,880
Events in quadrant D2,918,506479,572

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131632
B0131581
C0126271
D0132501

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6177951.537963%
B6177500.809454%
C6177120.194269%
D6177560.906589%

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 7343 6179 0 0 0.00% 0.00%
B 7343 6179 14 14 0.19% 0.23%
C 7343 6179 0 0 0.00% 0.00%
D 7343 6179 35 35 0.48% 0.57%

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 15 236 180104 1225.47 719 703 146.4
A 8 15 8916 56.1 719 703 146.4
A 13 14 7141 43.98 719 703 146.4
B 0 219 58642 422.19 721 703 137.2
B 15 204 36427 260.32 721 703 137.2
B 4 81 33707 240.5 721 703 137.2
C 13 61 5539 30.2 692 694 160.4
C 12 4 5431 29.52 692 694 160.4
C 3 202 1709 6.33 692 694 160.4
D 12 233 104391 609.77 693 671 170.1
D 2 14 70215 408.85 693 671 170.1
D 2 152 51327 297.81 693 671 170.1

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