ASTROSAT CZTI

Data Quality Report

Orbit 14348

Creation date: 2024-06-27T16:53:52.269897
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/AS1G08_078T01_9000002110_14348cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14348cztM0_level2_quad_clean.evt
Size (bytes)232,819,20023,103,360
Size222.0 MB 22.0 MB
Events in quadrant A1,596,102119,354
Events in quadrant B1,731,274120,484
Events in quadrant C1,685,595118,373
Events in quadrant D1,820,881115,291

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A067561
B071371
C068351
D075261

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A31651183.728278%
B31651404.423381%
C3165852.685624%
D31651063.349131%

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 3686 3166 0 0 0.00% 0.00%
B 3686 3166 7 7 0.19% 0.22%
C 3686 3167 0 0 0.00% 0.00%
D 3686 3166 24 24 0.65% 0.76%

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 12 189 43061 504.17 403 395 84.6
A 0 226 3539 37.15 403 395 84.6
A 12 194 3079 31.72 403 395 84.6
B 0 229 128777 1628.6 396 387 78.8
B 0 189 28666 358.71 396 387 78.8
B 0 214 13010 160.12 396 387 78.8
C 3 233 189646 2059.2 383 384 91.9
C 13 61 2746 25.7 383 384 91.9
C 3 202 918 5.81 383 384 91.9
D 2 120 130453 1363.87 388 378 95.4
D 5 222 112814 1178.92 388 378 95.4
D 10 172 41068 426.64 388 378 95.4

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