ASTROSAT CZTI

Data Quality Report

Orbit 04212

Creation date: 2024-06-27T14:38:52.317278
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_240T01_9000000536_04212cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04212cztM0_level2_quad_clean.evt
Size (bytes)499,512,96059,538,240
Size476.4 MB 56.8 MB
Events in quadrant A3,436,379345,961
Events in quadrant B4,546,672343,522
Events in quadrant C3,079,294336,523
Events in quadrant D3,626,674325,413

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140883
B0177942
C0133062
D0150472

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64611392.151370%
B64612734.225352%
C6461500.773874%
D64621922.971216%

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 7751 6462 34 34 0.44% 0.53%
B 7751 6462 128 128 1.65% 1.98%
C 7751 6462 0 0 0.00% 0.00%
D 7752 6463 127 127 1.64% 1.97%

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 15 234 144112 860.77 826 811 166.5
A 13 14 42869 252.63 826 811 166.5
A 0 50 32269 188.96 826 811 166.5
B 3 0 977293 6321.5 821 804 154.5
B 8 3 106197 682.28 821 804 154.5
B 14 167 105159 675.56 821 804 154.5
C 13 61 6538 31.51 787 792 182.4
C 14 48 3842 16.72 787 792 182.4
C 9 144 3595 15.37 787 792 182.4
D 2 232 493525 2628.4 784 763 187.5
D 13 239 49967 262.45 784 763 187.5
D 13 223 23438 120.95 784 763 187.5

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