ASTROSAT CZTI

Data Quality Report

Orbit 22394

Creation date: 2024-06-27T18:40:15.023183
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_007T04_9000003310_22394cztM0_level2.evt modeM0/AS1A07_007T04_9000003310_22394cztM0_level2_quad_clean.evt
Size (bytes)424,581,12087,050,880
Size404.9 MB 83.0 MB
Events in quadrant A2,998,967556,413
Events in quadrant B3,124,470574,396
Events in quadrant C3,069,181543,742
Events in quadrant D3,239,810524,285

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128882
B0131282
C0129902
D0137592

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6263210.335303%
B6263460.734472%
C6263560.894140%
D6263340.542871%

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 7438 6264 0 0 0.00% 0.00%
B 7438 6264 2 2 0.03% 0.03%
C 7438 6264 0 0 0.00% 0.00%
D 7438 6263 7 7 0.09% 0.11%

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 13 254 8986 52.92 778 764 155.4
A 0 226 6610 37.62 778 764 155.4
A 3 137 6485 36.82 778 764 155.4
B 12 111 17543 113.48 784 762 147.9
B 3 64 15982 102.92 784 762 147.9
B 11 111 15449 99.32 784 762 147.9
C 14 238 119911 680.59 753 759 175.1
C 0 10 11992 64.16 753 759 175.1
C 13 61 5180 25.25 753 759 175.1
D 1 52 190138 1050.5 751 730 180.3
D 2 136 83255 457.7 751 730 180.3
D 12 227 45213 246.71 751 730 180.3

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