ASTROSAT CZTI

Data Quality Report

Orbit 10584

Creation date: 2024-06-27T16:01:07.518996
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/AS1T01_191T01_9000001536_10584cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10584cztM0_level2_quad_clean.evt
Size (bytes)144,567,36013,285,440
Size137.9 MB 12.7 MB
Events in quadrant A970,06568,289
Events in quadrant B1,020,37469,837
Events in quadrant C954,85367,491
Events in quadrant D1,306,84163,399

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040702
B042021
C040041
D051261

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A181126214.467145%
B181131517.393705%
C181124913.749310%
D181129016.013252%

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 1931 1813 0 0 0.00% 0.00%
B 1931 1813 6 6 0.31% 0.33%
C 1931 1813 0 0 0.00% 0.00%
D 1931 1812 0 0 0.00% 0.00%

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 38222 733.9 240 233 51.8
A 1 162 2586 45.46 240 233 51.8
A 0 226 2191 37.83 240 233 51.8
B 4 239 92869 1926.28 236 229 48.1
B 12 111 5296 105.36 236 229 48.1
B 11 111 4281 84.25 236 229 48.1
C 8 128 3715 59.83 242 241 58.1
C 14 234 3030 48.03 242 241 58.1
C 13 61 1803 26.9 242 241 58.1
D 2 16 284085 4878.0 234 225 58.2
D 8 195 133059 2282.69 234 225 58.2
D 1 52 9579 160.74 234 225 58.2

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