ASTROSAT CZTI

Data Quality Report

Orbit 23522

Creation date: 2024-06-27T18:55:38.191915
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/AS1A07_112T02_9000003480_23522cztM0_level2.evt modeM0/AS1A07_112T02_9000003480_23522cztM0_level2_quad_clean.evt
Size (bytes)430,286,40092,882,880
Size410.4 MB 88.6 MB
Events in quadrant A3,056,184614,580
Events in quadrant B3,172,732618,356
Events in quadrant C3,034,264585,954
Events in quadrant D3,364,395578,960

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123061
B0127351
C0123381
D0134821

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5935450.758214%
B5936601.010782%
C5936691.162399%
D5936621.044474%

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 7285 5935 1 1 0.01% 0.02%
B 7286 5937 3 3 0.04% 0.05%
C 7286 5937 0 0 0.00% 0.00%
D 7286 5937 33 33 0.45% 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 13 254 10190 59.91 791 776 157.1
A 0 226 6849 38.65 791 776 157.1
A 3 137 6401 35.8 791 776 157.1
B 0 189 49733 339.96 774 758 144.1
B 0 230 33332 226.11 774 758 144.1
B 5 172 22325 149.7 774 758 144.1
C 14 238 121207 704.4 739 745 171.0
C 2 16 14176 78.54 739 745 171.0
C 7 247 11206 61.17 739 745 171.0
D 1 52 376824 2065.32 760 739 182.1
D 8 195 41910 226.1 760 739 182.1
D 2 234 23681 125.99 760 739 182.1

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