ASTROSAT CZTI

Data Quality Report

Orbit 46489

Creation date: 2024-06-27T23:23:46.015354
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/AS1A13_037T05_9000006216_46489cztM0_level2.fits modeM0/AS1A13_037T05_9000006216_46489cztM0_level2_quad_clean.evt
Size (bytes)235,442,88056,759,040
Size224.5 MB 54.1 MB
Events in quadrant A2,900,722379,417
Events in quadrant B1,674,445390,828
Events in quadrant C1,462,477380,322
Events in quadrant D2,418,777333,225

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105490
B071000
C066340
D093800

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3312130.392512%
B3312150.452899%
C331300.000000%
D33131334.014488%

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 3312 3312 2 2 0.06% 0.06%
B 3312 3312 10 10 0.30% 0.30%
C 3313 3313 0 0 0.00% 0.00%
D 3313 3313 122 122 3.68% 3.68%

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 1368970 17271.99 377 370 79.2
A 15 235 32025 399.49 377 370 79.2
A 7 3 22742 282.34 377 370 79.2
B 4 171 91127 1240.36 372 362 73.2
B 5 172 60904 827.35 372 362 73.2
B 0 190 22138 297.58 372 362 73.2
C 5 250 4751 49.8 372 375 87.9
C 3 233 3757 38.49 372 375 87.9
C 13 61 2561 24.88 372 375 87.9
D 1 52 444932 4729.15 366 354 94.0
D 2 249 230695 2450.23 366 354 94.0
D 8 176 190915 2027.07 366 354 94.0

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