ASTROSAT CZTI

Data Quality Report

Orbit 03279

Creation date: 2024-06-27T14:27:01.110811
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_002T02_9000000444_03279cztM0_level2.evt modeM0/AS1G05_002T02_9000000444_03279cztM0_level2_quad_clean.evt
Size (bytes)1,334,439,360214,836,480
Size1.2 GB 204.9 MB
Events in quadrant A9,505,6311,306,001
Events in quadrant B11,657,9641,319,919
Events in quadrant C8,677,6111,323,959
Events in quadrant D9,322,5101,281,810

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0416974
B0470503
C0394283
D0417073

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03760
B03760
C03760
D03760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A184965422.930363%
B184961780.962370%
C184961720.929931%
D184963862.086938%

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 20081 18499 292 292 1.45% 1.58%
B 20081 18499 26 26 0.13% 0.14%
C 20081 18499 108 108 0.54% 0.58%
D 20081 18499 328 328 1.63% 1.77%

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 14 249 746030 1765.44 2046 1997 421.4
A 0 50 509249 1203.61 2046 1997 421.4
A 0 118 285215 672.02 2046 1997 421.4
B 15 204 3080312 7599.78 2094 2036 405.0
B 2 249 297800 730.2 2094 2036 405.0
B 14 167 111441 270.1 2094 2036 405.0
C 14 223 353598 756.52 1997 2003 464.7
C 12 175 163243 346.94 1997 2003 464.7
C 6 80 146288 310.46 1997 2003 464.7
D 13 223 652615 1361.38 1986 1923 478.0
D 1 193 462681 964.0 1986 1923 478.0
D 13 239 226227 469.29 1986 1923 478.0

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