ASTROSAT CZTI

Data Quality Report

Orbit 15119

Creation date: 2024-06-27T17:04:00.529240
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/AS1G08_046T09_9000002226_15119cztM0_level2.evt modeM0/AS1G08_046T09_9000002226_15119cztM0_level2_quad_clean.evt
Size (bytes)904,815,360168,235,200
Size862.9 MB 160.4 MB
Events in quadrant A5,687,2361,094,056
Events in quadrant B7,900,1191,055,845
Events in quadrant C7,269,5891,067,352
Events in quadrant D5,731,5261,045,920

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248753
B0312872
C0296412
D0255642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02440
B02440
C02440
D02440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12034810.673093%
B120346945.766994%
C12034910.756191%
D120341221.013794%

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 13410 12035 9 9 0.07% 0.07%
B 13410 12036 500 500 3.73% 4.15%
C 13410 12036 16 16 0.12% 0.13%
D 13410 12036 51 51 0.38% 0.42%

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 12 189 118524 411.72 1406 1373 284.5
A 15 239 57621 197.68 1406 1373 284.5
A 9 143 50049 171.07 1406 1373 284.5
B 10 245 1613942 6225.07 1374 1338 259.0
B 3 64 629246 2423.89 1374 1338 259.0
B 0 190 50103 188.25 1374 1338 259.0
C 3 233 1652879 5255.19 1368 1374 314.3
C 4 254 214770 679.04 1368 1374 314.3
C 0 207 35150 107.48 1368 1374 314.3
D 2 14 107998 322.35 1373 1333 330.9
D 7 38 106510 317.85 1373 1333 330.9
D 5 222 78288 232.56 1373 1333 330.9

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