ASTROSAT CZTI

Data Quality Report

Orbit 10704

Creation date: 2024-06-27T16:02:43.686481
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/AS1A03_053T01_9000001542_10704cztM0_level2.evt modeM0/AS1A03_053T01_9000001542_10704cztM0_level2_quad_clean.evt
Size (bytes)955,503,360154,851,840
Size911.2 MB 147.7 MB
Events in quadrant A6,174,559977,382
Events in quadrant B7,980,655965,505
Events in quadrant C5,607,126973,436
Events in quadrant D8,323,001902,533

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02654046
B03182269
C02555144
D03279391

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02580
B02580
C02580
D02580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A125951301.032156%
B125906465.131056%
C12594790.627283%
D125834023.194787%

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 13820 12616 15 15 0.11% 0.12%
B 13820 12616 328 328 2.37% 2.60%
C 13820 12617 2 2 0.01% 0.02%
D 13820 12616 254 254 1.84% 2.01%

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 14 254 130243 430.22 1477 1444 299.4
A 15 174 96880 318.78 1477 1444 299.4
A 1 162 94417 310.55 1477 1444 299.4
B 4 239 1796500 6453.64 1454 1417 278.2
B 4 81 124235 441.55 1454 1417 278.2
B 0 214 117016 415.6 1454 1417 278.2
C 14 234 20432 57.31 1427 1435 331.5
C 8 128 10597 27.64 1427 1435 331.5
C 13 61 10524 27.42 1427 1435 331.5
D 8 195 743902 2215.71 1399 1363 335.1
D 10 199 738167 2198.6 1399 1363 335.1
D 2 16 737097 2195.41 1399 1363 335.1

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