ASTROSAT CZTI

Data Quality Report

Orbit 43004

Creation date: 2024-06-27T22:46:47.722003
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/AS1T05_148T01_9000005838_43004cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43004cztM0_level2_quad_clean.evt
Size (bytes)679,962,240212,794,560
Size648.5 MB 202.9 MB
Events in quadrant A6,415,5131,480,744
Events in quadrant B5,918,0921,498,441
Events in quadrant C5,706,3051,433,564
Events in quadrant D6,278,6911,270,934

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0410
B0410
C0410
D0410

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02260
B02260
C02260
D02260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0258083
B0245773
C0231723
D0260663

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10980580.528233%
B109811080.983517%
C10981310.282306%
D109812522.294873%

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 15100 10983 34 34 0.23% 0.31%
B 15101 10984 46 46 0.30% 0.42%
C 15101 10984 30 30 0.20% 0.27%
D 15101 10984 215 215 1.42% 1.96%

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 10 83 1097317 3846.46 1316 1295 284.9
A 15 237 199188 694.5 1316 1295 284.9
A 13 248 16500 53.36 1316 1295 284.9
B 4 171 651611 2436.92 1305 1276 266.9
B 15 85 68030 250.14 1305 1276 266.9
B 4 81 33992 122.59 1305 1276 266.9
C 15 214 446920 1421.0 1278 1292 313.6
C 5 250 122150 385.39 1278 1292 313.6
C 14 254 55307 172.24 1278 1292 313.6
D 1 52 551083 1703.1 1258 1221 322.9
D 13 249 487799 1507.09 1258 1221 322.9
D 1 47 155426 477.62 1258 1221 322.9

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