ASTROSAT CZTI

Data Quality Report

Orbit 19453

Creation date: 2024-06-27T18:03:03.871788
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/AS1A05_221T01_9000002888_19453cztM0_level2.evt modeM0/AS1A05_221T01_9000002888_19453cztM0_level2_quad_clean.evt
Size (bytes)494,052,48081,031,680
Size471.2 MB 77.3 MB
Events in quadrant A3,597,908512,505
Events in quadrant B3,775,552513,218
Events in quadrant C3,609,084486,935
Events in quadrant D3,536,180485,209

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145512
B0152092
C0145713
D0144262

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6533981.500077%
B65331442.204194%
C65321422.173913%
D6532891.362523%

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 7793 6533 0 0 0.00% 0.00%
B 7793 6533 24 24 0.31% 0.37%
C 7792 6532 5 5 0.06% 0.08%
D 7792 6532 19 19 0.24% 0.29%

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 11 29 27349 143.24 925 908 184.6
A 13 254 9088 44.31 925 908 184.6
A 3 1 8531 41.3 925 908 184.6
B 7 220 95852 566.5 901 882 167.6
B 0 198 59427 349.22 901 882 167.6
B 0 230 29766 172.3 901 882 167.6
C 14 238 138411 688.11 866 875 199.9
C 9 221 42475 208.13 866 875 199.9
C 0 207 41475 203.13 866 875 199.9
D 1 52 127994 582.4 898 874 218.3
D 2 234 27716 122.98 898 874 218.3
D 14 226 8646 35.61 898 874 218.3

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