ASTROSAT CZTI

Data Quality Report

Orbit 46414

Creation date: 2024-06-27T23:22:55.129626
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_033T03_9000006206_46414cztM0_level2.fits modeM0/AS1A13_033T03_9000006206_46414cztM0_level2_quad_clean.evt
Size (bytes)93,271,68024,612,480
Size89.0 MB 23.5 MB
Events in quadrant A1,396,397159,396
Events in quadrant B651,044170,475
Events in quadrant C632,907164,231
Events in quadrant D665,744151,808

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050221
B027771
C027722
D028901

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1332685.105105%
B133290.675676%
C133130.225394%
D1331171.277235%

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 1332 1332 10 10 0.75% 0.75%
B 1332 1332 0 0 0.00% 0.00%
C 1331 1331 1 1 0.08% 0.08%
D 1331 1331 4 4 0.30% 0.30%

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 771269 22041.13 159 156 35.0
A 0 247 5694 158.3 159 156 35.0
A 13 254 2439 65.26 159 156 35.0
B 5 32 10139 302.23 160 156 33.0
B 0 190 6587 194.7 160 156 33.0
B 12 111 3861 112.17 160 156 33.0
C 1 3 8312 214.79 155 156 38.0
C 12 249 7622 196.62 155 156 38.0
C 3 233 5779 148.08 155 156 38.0
D 13 138 31261 778.65 155 150 40.0
D 8 176 17553 435.56 155 150 40.0
D 2 249 15730 389.94 155 150 40.0

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