ASTROSAT CZTI

Data Quality Report

Orbit 10278

Creation date: 2024-06-27T15:57:20.734114
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/AS1C02_021T01_9000001482_10278cztM0_level2.evt modeM0/AS1C02_021T01_9000001482_10278cztM0_level2_quad_clean.evt
Size (bytes)461,551,680109,195,200
Size440.2 MB 104.1 MB
Events in quadrant A3,065,182732,489
Events in quadrant B3,745,365720,236
Events in quadrant C2,929,288709,121
Events in quadrant D3,793,020688,111

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133842
B0152661
C0132771
D0152641

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6559330.503125%
B65591111.692331%
C6559290.442141%
D6559881.341668%

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 7749 6560 0 0 0.00% 0.00%
B 7749 6561 48 48 0.62% 0.73%
C 7749 6561 0 0 0.00% 0.00%
D 7749 6560 52 52 0.67% 0.79%

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 8 5 30484 189.71 780 765 156.7
A 15 174 27015 167.56 780 765 156.7
A 0 226 7287 41.63 780 765 156.7
B 4 239 266138 1841.7 769 751 144.1
B 11 51 140406 969.16 769 751 144.1
B 0 85 104136 717.46 769 751 144.1
C 13 61 5705 28.96 749 751 171.1
C 14 234 5012 24.9 749 751 171.1
C 14 67 3259 14.66 749 751 171.1
D 8 195 287758 1602.4 753 733 179.1
D 12 233 283388 1578.01 753 733 179.1
D 2 16 94037 520.9 753 733 179.1

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