ASTROSAT CZTI

Data Quality Report

Orbit 23304

Creation date: 2024-06-27T18:52:34.393601
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_148T02_9000003444_23304cztM0_level2.evt modeM0/AS1A07_148T02_9000003444_23304cztM0_level2_quad_clean.evt
Size (bytes)505,463,04062,746,560
Size482.0 MB 59.8 MB
Events in quadrant A3,422,426378,873
Events in quadrant B3,529,809376,060
Events in quadrant C3,475,332362,641
Events in quadrant D4,458,742347,794

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139751
B0143061
C0141061
D0175061

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6220801.286174%
B62211131.816428%
C62211252.009323%
D62212554.099019%

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 7545 6220 0 0 0.00% 0.00%
B 7546 6221 15 15 0.20% 0.24%
C 7546 6221 0 0 0.00% 0.00%
D 7546 6221 174 174 2.31% 2.80%

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 10138 52.62 888 874 176.0
A 0 226 7961 40.26 888 874 176.0
A 3 137 7055 35.11 888 874 176.0
B 0 229 83319 508.11 872 853 162.3
B 0 230 21527 127.38 872 853 162.3
B 12 111 18392 108.07 872 853 162.3
C 14 238 137728 709.69 842 851 192.9
C 10 9 36878 186.8 842 851 192.9
C 3 233 6167 27.56 842 851 192.9
D 1 52 801358 3941.45 851 829 203.1
D 1 239 255293 1252.87 851 829 203.1
D 12 227 78489 382.36 851 829 203.1

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