ASTROSAT CZTI

Data Quality Report

Orbit 07425

Creation date: 2024-06-27T15:19:36.257955
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/AS1A02_150T04_9000001022_07425cztM0_level2.evt modeM0/AS1A02_150T04_9000001022_07425cztM0_level2_quad_clean.evt
Size (bytes)421,344,00082,419,840
Size401.8 MB 78.6 MB
Events in quadrant A3,074,571512,079
Events in quadrant B3,025,482534,087
Events in quadrant C3,211,165535,089
Events in quadrant D3,058,662512,926

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128472
B0127221
C0133451
D0128981

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57481863.235908%
B5748831.443981%
C5748591.026444%
D5748981.704941%

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 7043 5749 106 106 1.51% 1.84%
B 7043 5749 1 1 0.01% 0.02%
C 7043 5749 0 0 0.00% 0.00%
D 7043 5749 25 25 0.35% 0.43%

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 303881 2096.82 716 702 144.6
A 0 226 7067 44.02 716 702 144.6
A 12 194 6314 38.81 716 702 144.6
B 10 245 73613 527.38 733 716 138.2
B 0 214 55847 398.85 733 716 138.2
B 4 173 17574 121.96 733 716 138.2
C 9 68 403802 2418.8 718 724 166.6
C 12 4 5831 30.64 718 724 166.6
C 13 61 5511 28.72 718 724 166.6
D 13 105 85906 489.19 713 694 174.2
D 2 136 73317 416.92 713 694 174.2
D 2 14 70459 400.51 713 694 174.2

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