ASTROSAT CZTI

Data Quality Report

Orbit 03385

Creation date: 2024-06-27T14:28:18.991573
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/AS1G05_112T01_9000000452_03385cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03385cztM0_level2_quad_clean.evt
Size (bytes)426,263,04080,461,440
Size406.5 MB 76.7 MB
Events in quadrant A3,178,256506,914
Events in quadrant B3,200,027510,195
Events in quadrant C3,067,055502,743
Events in quadrant D3,038,410479,687

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134873
B0136502
C0131932
D0133932

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6265500.798085%
B6265370.590583%
C6265250.399042%
D6265340.542698%

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 7500 6266 15 15 0.20% 0.24%
B 7500 6266 2 2 0.03% 0.03%
C 7500 6266 7 7 0.09% 0.11%
D 7500 6266 21 21 0.28% 0.34%

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 0 118 158859 1017.75 759 745 155.4
A 8 15 43022 272.13 759 745 155.4
A 0 226 22737 141.56 759 745 155.4
B 15 204 95960 642.37 776 762 148.2
B 14 167 57061 379.89 776 762 148.2
B 2 249 18664 120.8 776 762 148.2
C 1 192 59871 339.77 747 752 174.0
C 14 67 24736 137.84 747 752 174.0
C 6 80 18662 102.93 747 752 174.0
D 13 223 180299 1005.59 737 717 178.6
D 2 206 20102 108.55 737 717 178.6
D 5 233 17131 91.91 737 717 178.6

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