ASTROSAT CZTI

Data Quality Report

Orbit 04386

Creation date: 2024-06-27T14:41:17.583343
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/AS1G05_167T02_9000000546_04386cztM0_level2.evt modeM0/AS1G05_167T02_9000000546_04386cztM0_level2_quad_clean.evt
Size (bytes)254,376,00042,747,840
Size242.6 MB 40.8 MB
Events in quadrant A1,933,419259,156
Events in quadrant B1,768,985265,538
Events in quadrant C1,865,660257,775
Events in quadrant D1,877,485244,654

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080900
B076090
C080040
D081980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3774160.423953%
B377420.052994%
C3774100.264971%
D3774230.609433%

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 3774 3774 12 12 0.32% 0.32%
B 3774 3774 0 0 0.00% 0.00%
C 3774 3774 11 11 0.29% 0.29%
D 3774 3774 21 21 0.56% 0.56%

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 13 251 140943 1531.05 449 441 91.8
A 15 234 43807 472.56 449 441 91.8
A 13 14 20526 218.87 449 441 91.8
B 0 228 12065 133.85 453 443 86.8
B 14 167 9193 100.77 453 443 86.8
B 12 111 8177 89.07 453 443 86.8
C 14 48 110666 1079.32 434 436 102.1
C 9 247 48532 470.93 434 436 102.1
C 12 4 5871 53.22 434 436 102.1
D 13 239 110116 1037.96 432 419 105.7
D 2 63 67126 631.18 432 419 105.7
D 13 238 57176 537.04 432 419 105.7

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