ASTROSAT CZTI

Data Quality Report

Orbit 08119

Creation date: 2024-06-27T15:28:15.053326
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/AS1G06_033T01_9000001116_08119cztM0_level2.evt modeM0/AS1G06_033T01_9000001116_08119cztM0_level2_quad_clean.evt
Size (bytes)467,605,44064,200,960
Size445.9 MB 61.2 MB
Events in quadrant A3,346,857374,729
Events in quadrant B3,566,932378,795
Events in quadrant C3,355,034379,627
Events in quadrant D3,457,173363,271

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138933
B0147052
C0137872
D0142502

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6412630.982533%
B6412731.138490%
C6412540.842171%
D6413570.888820%

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 7707 6413 0 0 0.00% 0.00%
B 7707 6413 12 12 0.16% 0.19%
C 7707 6413 13 13 0.17% 0.20%
D 7708 6414 8 8 0.10% 0.12%

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 23375 130.94 861 846 172.1
A 0 226 8203 42.76 861 846 172.1
A 12 194 7856 40.74 861 846 172.1
B 0 214 125913 773.9 860 845 161.6
B 10 16 55789 339.98 860 845 161.6
B 0 219 18739 110.73 860 845 161.6
C 12 4 79069 405.02 839 845 193.1
C 13 61 6373 28.62 839 845 193.1
C 1 16 5684 25.06 839 845 193.1
D 5 233 128008 624.1 842 819 203.8
D 12 233 29934 142.86 842 819 203.8
D 2 152 28454 135.6 842 819 203.8

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