ASTROSAT CZTI

Data Quality Report

Orbit 09095

Creation date: 2024-06-27T15:41:05.719865
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_120T01_9000001266_09095cztM0_level2.evt modeM0/AS1A03_120T01_9000001266_09095cztM0_level2_quad_clean.evt
Size (bytes)534,240,00092,761,920
Size509.5 MB 88.5 MB
Events in quadrant A3,535,036593,781
Events in quadrant B3,371,448600,598
Events in quadrant C4,939,105563,178
Events in quadrant D3,857,058562,412

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147498
B01475011
C01974839
D01638424

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7018991.410658%
B7017951.353855%
C701597013.827512%
D70132002.851847%

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 7281 7021 5 5 0.07% 0.07%
B 7281 7022 3 3 0.04% 0.04%
C 7281 7017 840 840 11.54% 11.97%
D 7281 7022 88 88 1.21% 1.25%

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 283697 1654.48 827 807 171.0
A 5 16 34127 194.87 827 807 171.0
A 1 162 18239 101.95 827 807 171.0
B 4 173 50159 309.66 829 809 159.4
B 0 219 36270 222.51 829 809 159.4
B 4 48 28730 175.2 829 809 159.4
C 14 234 2128316 12725.08 714 717 167.2
C 8 128 10456 58.25 714 717 167.2
C 8 112 5657 29.55 714 717 167.2
D 10 172 371877 1713.86 797 778 216.5
D 7 71 116376 533.87 797 778 216.5
D 12 233 94465 432.68 797 778 216.5

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