ASTROSAT CZTI

Data Quality Report

Orbit 19143

Creation date: 2024-06-27T17:59:29.013715
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/AS1A05_046T01_9000002838_19143cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19143cztM0_level2_quad_clean.evt
Size (bytes)945,429,120143,550,720
Size901.6 MB 136.9 MB
Events in quadrant A6,057,941867,786
Events in quadrant B7,650,645889,690
Events in quadrant C7,069,096859,728
Events in quadrant D6,979,111835,587

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265253
B0310193
C0293243
D0293893

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02640
B02640
C02640
D02640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A129432091.614772%
B129435614.334389%
C129442772.139988%
D129444283.306551%

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 14548 12943 0 0 0.00% 0.00%
B 14548 12945 240 240 1.65% 1.85%
C 14549 12947 18 18 0.12% 0.14%
D 14549 12946 215 215 1.48% 1.66%

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 13 254 15196 42.69 1569 1531 320.1
A 0 226 13604 37.72 1569 1531 320.1
A 3 137 12472 34.18 1569 1531 320.1
B 6 36 1039475 3480.37 1551 1511 298.2
B 7 220 270019 900.33 1551 1511 298.2
B 3 64 199121 662.6 1551 1511 298.2
C 3 233 866163 2427.76 1512 1520 356.1
C 14 238 230467 642.84 1512 1520 356.1
C 0 207 80085 220.6 1512 1520 356.1
D 1 52 1119652 2983.66 1528 1482 374.8
D 2 234 55395 143.86 1528 1482 374.8
D 7 238 44080 113.67 1528 1482 374.8

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