ASTROSAT CZTI

Data Quality Report

Orbit 23788

Creation date: 2024-06-27T18:58:44.396796
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_113T01_9000003526_23788cztM0_level2.evt modeM0/AS1A07_113T01_9000003526_23788cztM0_level2_quad_clean.evt
Size (bytes)414,794,88057,945,600
Size395.6 MB 55.3 MB
Events in quadrant A2,280,445355,216
Events in quadrant B2,433,985364,249
Events in quadrant C2,327,682350,468
Events in quadrant D5,178,762332,532

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100750
B0103950
C0101200
D0189570

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A501740.079729%
B5018170.338780%
C5018310.617776%
D501877715.484257%

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 5017 5017 0 0 0.00% 0.00%
B 5018 5018 4 4 0.08% 0.08%
C 5018 5018 0 0 0.00% 0.00%
D 5018 5018 668 668 13.31% 13.31%

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 8702 66.9 591 579 121.4
A 3 137 5347 39.27 591 579 121.4
A 0 226 4964 36.12 591 579 121.4
B 3 64 69046 592.36 591 576 115.6
B 0 189 16228 135.41 591 576 115.6
B 12 111 13759 114.05 591 576 115.6
C 14 238 90363 668.45 568 572 134.3
C 7 247 16120 115.75 568 572 134.3
C 10 91 4916 32.34 568 572 134.3
D 8 195 2606871 19461.75 545 528 133.9
D 1 52 304718 2271.41 545 528 133.9
D 9 35 58014 429.25 545 528 133.9

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