ASTROSAT CZTI

Data Quality Report

Orbit 18613

Creation date: 2024-06-27T17:52:25.290841
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/AS1A05_083T01_9000002772_18613cztM0_level2.evt modeM0/AS1A05_083T01_9000002772_18613cztM0_level2_quad_clean.evt
Size (bytes)191,583,36022,947,840
Size182.7 MB 21.9 MB
Events in quadrant A1,346,544133,667
Events in quadrant B1,344,979136,338
Events in quadrant C1,361,051131,462
Events in quadrant D1,591,897127,430

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A055171
B054901
C055721
D063051

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2282381.665206%
B2283522.277705%
C2283773.372755%
D2283843.679369%

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 3527 2282 0 0 0.00% 0.00%
B 3528 2283 0 0 0.00% 0.00%
C 3528 2283 0 0 0.00% 0.00%
D 3528 2283 35 35 0.99% 1.53%

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 13 26386 372.7 342 336 69.9
A 13 254 4113 54.04 342 336 69.9
A 0 226 2925 37.04 342 336 69.9
B 0 189 10046 149.62 341 334 64.9
B 12 111 7090 104.08 341 334 64.9
B 11 111 6214 90.58 341 334 64.9
C 14 238 53108 680.19 334 337 77.6
C 3 233 3998 47.19 334 337 77.6
C 13 61 2384 26.38 334 337 77.6
D 5 222 184288 2258.24 336 326 81.5
D 7 238 61520 751.19 336 326 81.5
D 7 96 33312 404.92 336 326 81.5

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