ASTROSAT CZTI

Data Quality Report

Orbit 08352

Creation date: 2024-06-27T15:31:29.001027
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_009T01_9000001160_08352cztM0_level2.evt modeM0/AS1A03_009T01_9000001160_08352cztM0_level2_quad_clean.evt
Size (bytes)421,882,56075,873,600
Size402.3 MB 72.4 MB
Events in quadrant A3,055,666475,973
Events in quadrant B3,199,797485,799
Events in quadrant C2,962,860464,416
Events in quadrant D3,143,538445,353

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127162
B0130811
C0126071
D0132271

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60921512.478661%
B60921432.347341%
C60921161.904137%
D60921592.609980%

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 7282 6092 4 4 0.05% 0.07%
B 7282 6092 2 2 0.03% 0.03%
C 7282 6093 0 0 0.00% 0.00%
D 7282 6092 24 24 0.33% 0.39%

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 14 111 16035 96.45 782 766 158.3
A 15 236 9664 56.21 782 766 158.3
A 1 162 8224 47.11 782 766 158.3
B 0 214 97950 666.12 779 763 145.9
B 4 81 23044 152.71 779 763 145.9
B 4 80 18230 119.72 779 763 145.9
C 13 61 5781 28.94 759 762 173.5
C 3 202 1926 6.71 759 762 173.5
C 3 203 1653 5.14 759 762 173.5
D 7 71 105612 561.15 755 735 186.9
D 2 14 62822 332.2 755 735 186.9
D 12 233 59737 315.69 755 735 186.9

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