ASTROSAT CZTI

Data Quality Report

Orbit 33339

Creation date: 2024-06-27T20:48:03.130021
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/AS1A10_090T11_9000004784_33339cztM0_level2.evt modeM0/AS1A10_090T11_9000004784_33339cztM0_level2_quad_clean.evt
Size (bytes)496,111,68079,727,040
Size473.1 MB 76.0 MB
Events in quadrant A2,474,584529,668
Events in quadrant B3,736,070516,870
Events in quadrant C3,465,929511,780
Events in quadrant D4,999,992495,552

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104603
B0143532
C0134612
D0185202

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5143100.194439%
B51433456.708147%
C51431563.033249%
D51432234.335991%

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 7086 5144 0 0 0.00% 0.00%
B 7086 5144 242 242 3.42% 4.70%
C 7086 5144 147 147 2.07% 2.86%
D 7086 5144 207 207 2.92% 4.02%

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 12 16 16202 123.19 630 620 126.5
A 13 6 10838 80.78 630 620 126.5
A 13 254 8741 64.2 630 620 126.5
B 5 172 516975 4419.42 614 600 116.8
B 5 200 355889 3040.76 614 600 116.8
B 0 219 248574 2122.3 614 600 116.8
C 1 23 596077 4352.3 594 600 136.8
C 15 214 238436 1738.33 594 600 136.8
C 0 10 194339 1416.02 594 600 136.8
D 8 195 1708653 10860.13 595 582 157.3
D 14 173 277752 1762.28 595 582 157.3
D 12 6 197806 1253.98 595 582 157.3

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