ASTROSAT CZTI

Data Quality Report

Orbit 15607

Creation date: 2024-06-27T17:11:04.247040
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/AS1A04_037T01_9000002312_15607cztM0_level2.evt modeM0/AS1A04_037T01_9000002312_15607cztM0_level2_quad_clean.evt
Size (bytes)512,841,60079,957,440
Size489.1 MB 76.3 MB
Events in quadrant A3,536,264481,743
Events in quadrant B4,095,077488,987
Events in quadrant C3,816,304467,504
Events in quadrant D3,579,932466,473

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153442
B0167031
C0159461
D0156941

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74111492.010525%
B74111782.401835%
C74112032.739172%
D74111011.362839%

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 7732 7412 0 0 0.00% 0.00%
B 7732 7412 3 3 0.04% 0.04%
C 7732 7412 33 33 0.43% 0.45%
D 7732 7412 8 8 0.10% 0.11%

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 0 226 8337 39.89 916 896 186.6
A 12 194 7028 32.87 916 896 186.6
A 9 143 6713 31.18 916 896 186.6
B 4 251 414722 2348.28 907 882 176.2
B 0 189 61535 344.17 907 882 176.2
B 3 209 21616 117.65 907 882 176.2
C 3 233 229797 1115.4 874 880 205.2
C 14 238 133761 647.46 874 880 205.2
C 7 247 35690 169.61 874 880 205.2
D 12 110 94761 421.64 899 872 222.7
D 2 234 34915 152.88 899 872 222.7
D 15 145 23669 102.38 899 872 222.7

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