ASTROSAT CZTI

Data Quality Report

Orbit 14005

Creation date: 2024-06-27T16:48:56.476402
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/AS1A04_038T02_9000002068_14005cztM0_level2.evt modeM0/AS1A04_038T02_9000002068_14005cztM0_level2_quad_clean.evt
Size (bytes)1,018,287,360241,542,720
Size971.1 MB 230.4 MB
Events in quadrant A6,184,7611,618,286
Events in quadrant B7,479,7241,624,679
Events in quadrant C6,176,4661,609,428
Events in quadrant D10,085,1811,531,122

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02740
B02740
C02740
D02740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0276102
B0309602
C0274562
D0392342

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A134992071.533447%
B134994012.970590%
C134991851.370472%
D134996875.089266%

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 14575 13502 0 0 0.00% 0.00%
B 14575 13502 107 107 0.73% 0.79%
C 14575 13502 0 0 0.00% 0.00%
D 14575 13502 610 610 4.19% 4.52%

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 57664 177.28 1555 1516 316.7
A 8 15 50521 154.73 1555 1516 316.7
A 1 162 31451 94.52 1555 1516 316.7
B 10 16 437711 1486.65 1540 1501 293.4
B 0 189 352524 1196.32 1540 1501 293.4
B 3 64 142490 480.5 1540 1501 293.4
C 3 233 310582 894.93 1501 1502 345.4
C 13 61 10918 27.26 1501 1502 345.4
C 8 128 7868 18.43 1501 1502 345.4
D 1 52 3563413 9868.19 1488 1448 361.0
D 10 157 212134 583.69 1488 1448 361.0
D 13 189 193855 533.05 1488 1448 361.0

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