ASTROSAT CZTI

Data Quality Report

Orbit 14676

Creation date: 2024-06-27T16:58:20.783502
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/AS1A04_101T01_9000002170_14676cztM0_level2.evt modeM0/AS1A04_101T01_9000002170_14676cztM0_level2_quad_clean.evt
Size (bytes)462,905,280108,999,360
Size441.5 MB 103.9 MB
Events in quadrant A3,538,423736,862
Events in quadrant B3,227,499725,663
Events in quadrant C3,685,245716,323
Events in quadrant D3,166,123708,677

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145662
B0133661
C0153341
D0131561

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5924771.299797%
B5924751.266036%
C5924681.147873%
D5924570.962188%

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 7215 5925 0 0 0.00% 0.00%
B 7215 5925 1 1 0.01% 0.02%
C 7215 5925 2 2 0.03% 0.03%
D 7215 5925 10 10 0.14% 0.17%

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 15 295398 1810.63 806 792 162.7
A 0 253 104295 636.12 806 792 162.7
A 1 162 16416 96.02 806 792 162.7
B 10 16 74252 496.54 784 766 148.0
B 0 214 24587 160.96 784 766 148.0
B 0 205 22284 145.4 784 766 148.0
C 3 233 660527 3739.04 768 775 176.4
C 0 207 19117 103.95 768 775 176.4
C 14 234 9907 51.75 768 775 176.4
D 12 2 92798 447.74 775 761 205.6
D 2 152 37900 180.67 775 761 205.6
D 2 234 22124 103.93 775 761 205.6

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