ASTROSAT CZTI

Data Quality Report

Orbit 07784

Creation date: 2024-06-27T15:23:57.427357
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_169T01_9000001070_07784cztM0_level2.evt modeM0/AS1G06_169T01_9000001070_07784cztM0_level2_quad_clean.evt
Size (bytes)372,202,56070,986,240
Size355.0 MB 67.7 MB
Events in quadrant A2,490,853442,463
Events in quadrant B2,656,751451,173
Events in quadrant C2,480,108441,674
Events in quadrant D3,262,756422,031

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113882
B0117231
C0113721
D0136071

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A561470.124688%
B5614180.320627%
C561450.089063%
D5614801.425009%

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 6769 5615 1 1 0.01% 0.02%
B 6769 5615 7 7 0.10% 0.12%
C 6769 5615 0 0 0.00% 0.00%
D 6769 5615 71 71 1.05% 1.26%

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 0 226 6003 40.81 645 631 131.6
A 12 194 5542 37.3 645 631 131.6
A 15 234 3883 24.7 645 631 131.6
B 0 214 21964 171.55 652 638 124.3
B 0 213 21702 169.44 652 638 124.3
B 4 173 21409 167.09 652 638 124.3
C 12 4 11940 76.52 631 635 147.7
C 13 61 4857 28.58 631 635 147.7
C 8 222 2828 14.84 631 635 147.7
D 2 152 346536 2260.59 624 606 153.0
D 1 52 323776 2111.86 624 606 153.0
D 13 104 120309 782.24 624 606 153.0

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