ASTROSAT CZTI

Data Quality Report

Orbit 08209

Creation date: 2024-06-27T15:29:43.988792
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/AS1G07_034T01_9000001134_08209cztM0_level2.evt modeM0/AS1G07_034T01_9000001134_08209cztM0_level2_quad_clean.evt
Size (bytes)285,042,24041,071,680
Size271.8 MB 39.2 MB
Events in quadrant A1,920,243240,365
Events in quadrant B1,941,875243,125
Events in quadrant C1,858,538243,453
Events in quadrant D2,638,164233,503

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A083852
B084091
C083121
D0106441

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4015310.772105%
B4015390.971357%
C4015150.373599%
D40151724.283935%

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 4875 4016 0 0 0.00% 0.00%
B 4875 4016 0 0 0.00% 0.00%
C 4875 4016 0 0 0.00% 0.00%
D 4875 4016 159 159 3.26% 3.96%

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 8 15 29581 285.22 489 478 102.0
A 4 2 7007 63.99 489 478 102.0
A 0 226 4539 39.8 489 478 102.0
B 12 111 10026 98.99 493 480 96.4
B 10 16 9011 88.46 493 480 96.4
B 0 245 8404 82.17 493 480 96.4
C 13 61 3722 28.87 475 478 112.4
C 14 67 3409 26.08 475 478 112.4
C 1 16 1280 7.14 475 478 112.4
D 1 7 753933 6484.69 471 455 116.2
D 2 14 28337 239.96 471 455 116.2
D 12 233 27061 228.98 471 455 116.2

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