ASTROSAT CZTI

Data Quality Report

Orbit 09088

Creation date: 2024-06-27T15:40:59.722845
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/AS1A03_120T01_9000001266_09088cztM0_level2.evt modeM0/AS1A03_120T01_9000001266_09088cztM0_level2_quad_clean.evt
Size (bytes)454,541,76076,478,400
Size433.5 MB 72.9 MB
Events in quadrant A3,288,430478,063
Events in quadrant B3,100,642496,722
Events in quadrant C2,892,999476,138
Events in quadrant D4,068,136437,774

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013522119
B01308091
C01265676
D016399178

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01244

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6119330.539304%
B6126290.473392%
C613380.130442%
D61073415.583756%

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 7470 6169 4 4 0.05% 0.06%
B 7470 6171 0 0 0.00% 0.00%
C 7470 6170 0 0 0.00% 0.00%
D 7470 6166 313 313 4.19% 5.08%

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 5 193711 1257.95 763 749 153.4
A 1 162 69031 445.14 763 749 153.4
A 5 16 33984 216.66 763 749 153.4
B 0 214 47248 321.96 772 757 144.4
B 12 111 15592 102.73 772 757 144.4
B 4 48 15531 102.31 772 757 144.4
C 14 234 6489 33.57 740 746 171.1
C 13 61 5608 28.42 740 746 171.1
C 3 202 1833 6.35 740 746 171.1
D 1 52 1115618 5974.16 712 694 186.6
D 8 195 56675 299.97 712 694 186.6
D 2 14 50524 267.01 712 694 186.6

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