ASTROSAT CZTI

Data Quality Report

Orbit 37289

Creation date: 2024-06-27T21:37:57.816698
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_103T07_9000005302_37289cztM0_level2.evt modeM0/AS1A10_103T07_9000005302_37289cztM0_level2_quad_clean.evt
Size (bytes)377,668,80053,916,480
Size360.2 MB 51.4 MB
Events in quadrant A2,805,349314,284
Events in quadrant B2,612,556325,004
Events in quadrant C2,978,321328,265
Events in quadrant D2,697,660310,218

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111823
B0105622
C0116692
D0110402

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5058110.217477%
B505880.158165%
C5058731.443258%
D5058521.028074%

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 7152 5059 6 6 0.08% 0.12%
B 7152 5059 1 1 0.01% 0.02%
C 7152 5059 58 58 0.81% 1.15%
D 7152 5059 42 42 0.59% 0.83%

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 10 83 260394 2040.6 636 625 127.3
A 9 143 24219 185.34 636 625 127.3
A 15 222 23681 181.11 636 625 127.3
B 0 213 33816 278.42 637 621 119.2
B 4 171 19932 161.97 637 621 119.2
B 0 189 17632 142.68 637 621 119.2
C 15 214 215617 1497.5 626 634 143.6
C 0 10 209481 1454.76 626 634 143.6
C 1 23 70304 485.3 626 634 143.6
D 1 52 128948 866.74 623 608 148.1
D 13 249 59064 394.78 623 608 148.1
D 2 250 24244 159.62 623 608 148.1

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