ASTROSAT CZTI

Data Quality Report

Orbit 28401

Creation date: 2024-06-27T19:51:22.781474
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/AS1A10_058T13_9000004088_28401cztM0_level2.evt modeM0/AS1A10_058T13_9000004088_28401cztM0_level2_quad_clean.evt
Size (bytes)484,211,52090,630,720
Size461.8 MB 86.4 MB
Events in quadrant A3,183,281586,989
Events in quadrant B3,584,115605,550
Events in quadrant C3,224,167570,633
Events in quadrant D4,248,950545,364

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131810
B0144480
C0131860
D0165230

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6254280.447713%
B6254951.519028%
C6254861.375120%
D62541081.726895%

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 7554 6255 0 0 0.00% 0.00%
B 7554 6255 26 26 0.34% 0.42%
C 7554 6255 2 2 0.03% 0.03%
D 7554 6255 95 95 1.26% 1.52%

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 4 2 11846 67.51 819 804 163.5
A 13 254 11024 62.49 819 804 163.5
A 13 6 8115 44.7 819 804 163.5
B 10 245 231632 1498.56 822 805 154.0
B 15 33 62049 397.6 822 805 154.0
B 10 246 27554 173.66 822 805 154.0
C 14 238 129528 696.0 791 797 185.0
C 7 220 9485 46.97 791 797 185.0
C 0 10 5766 26.87 791 797 185.0
D 8 195 876170 4685.16 782 763 186.8
D 1 52 269849 1440.14 782 763 186.8
D 7 80 64960 343.58 782 763 186.8

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