ASTROSAT CZTI

Data Quality Report

Orbit 15116

Creation date: 2024-06-27T17:03:58.554015
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_15116cztM0_level2.evt modeM0/AS1G08_046T09_9000002226_15116cztM0_level2_quad_clean.evt
Size (bytes)242,213,76020,047,680
Size231.0 MB 19.1 MB
Events in quadrant A1,320,506107,509
Events in quadrant B2,802,324103,265
Events in quadrant C1,788,838105,229
Events in quadrant D1,243,443102,323

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056033
B0100232
C070612
D055452

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A26161897.224771%
B261685432.645260%
C26161877.148318%
D26161445.504587%

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 2727 2619 0 0 0.00% 0.00%
B 2726 2617 378 378 13.87% 14.44%
C 2727 2619 18 18 0.66% 0.69%
D 2727 2619 0 0 0.00% 0.00%

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 15 69 20200 283.11 336 327 70.2
A 12 189 7387 100.58 336 327 70.2
A 0 226 3012 38.25 336 327 70.2
B 10 245 1552440 25982.45 299 290 59.7
B 3 64 45008 748.56 299 290 59.7
B 4 48 11912 194.55 299 290 59.7
C 3 233 287730 3772.24 322 322 76.2
C 4 254 235283 3083.88 322 322 76.2
C 3 234 2485 28.39 322 322 76.2
D 2 234 9653 114.99 325 313 81.2
D 13 104 4054 46.06 325 313 81.2
D 13 249 3420 38.25 325 313 81.2

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