ASTROSAT CZTI

Data Quality Report

Orbit 14448

Creation date: 2024-06-27T16:55:18.885288
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_025T01_9000002130_14448cztM0_level2.evt modeM0/AS1G08_025T01_9000002130_14448cztM0_level2_quad_clean.evt
Size (bytes)894,412,800143,930,880
Size853.0 MB 137.3 MB
Events in quadrant A5,579,930930,151
Events in quadrant B8,709,841854,988
Events in quadrant C6,286,204903,888
Events in quadrant D5,748,393889,071

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A024447593
B033891584
C026347585
D025294629

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02344
B02346
C02344
D02344

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A112801110.984043%
B11283128611.397678%
C11290840.744021%
D112631501.331794%

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 13405 11338 0 0 0.00% 0.00%
B 13405 11348 967 967 7.21% 8.52%
C 13405 11359 11 11 0.08% 0.10%
D 13405 11324 74 74 0.55% 0.65%

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 123710 439.65 1379 1351 278.3
A 8 15 103277 366.23 1379 1351 278.3
A 4 2 49644 173.52 1379 1351 278.3
B 10 16 3373822 13745.51 1296 1264 245.4
B 0 189 64516 257.8 1296 1264 245.4
B 3 209 46344 183.73 1296 1264 245.4
C 3 233 1096465 3629.9 1316 1320 301.7
C 0 207 52906 170.98 1316 1320 301.7
C 13 61 9444 26.93 1316 1320 301.7
D 2 120 269910 856.0 1315 1282 313.8
D 10 199 207056 655.71 1315 1282 313.8
D 12 110 133557 421.5 1315 1282 313.8

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