ASTROSAT CZTI

Data Quality Report

Orbit 05298

Creation date: 2024-06-27T14:53:38.502740
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_212T01_9000000672_05298cztM0_level2.evt modeM0/AS1G05_212T01_9000000672_05298cztM0_level2_quad_clean.evt
Size (bytes)494,694,720105,010,560
Size471.8 MB 100.1 MB
Events in quadrant A2,933,063685,853
Events in quadrant B3,123,247702,152
Events in quadrant C2,898,441703,106
Events in quadrant D5,586,390636,392

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132923
B0136312
C0131602
D0210802

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6495120.184758%
B6495260.400308%
C649540.061586%
D64956259.622787%

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 7830 6496 5 5 0.06% 0.08%
B 7830 6496 4 4 0.05% 0.06%
C 7830 6496 0 0 0.00% 0.00%
D 7830 6496 532 532 6.79% 8.19%

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 13 251 89256 592.72 736 722 149.4
A 0 50 10767 67.25 736 722 149.4
A 12 194 7331 44.25 736 722 149.4
B 4 48 127056 892.65 758 740 141.5
B 15 204 23574 161.36 758 740 141.5
B 4 80 16752 113.15 758 740 141.5
C 1 16 6801 35.8 739 745 169.2
C 13 61 5866 30.27 739 745 169.2
C 12 4 3427 15.85 739 745 169.2
D 11 145 2156278 12751.08 701 681 169.1
D 2 33 300263 1772.13 701 681 169.1
D 8 195 157817 929.51 701 681 169.1

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