ASTROSAT CZTI

Data Quality Report

Orbit 10038

Creation date: 2024-06-27T15:54:02.797484
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/AS1G07_022T02_9000001434_10038cztM0_level2.evt modeM0/AS1G07_022T02_9000001434_10038cztM0_level2_quad_clean.evt
Size (bytes)23,114,8804,685,760
Size22.0 MB 4.5 MB
Events in quadrant A157,16624,017
Events in quadrant B166,10228,558
Events in quadrant C168,68029,715
Events in quadrant D178,76324,832

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01679516094
B01672015978
C01651815724
D01853417800

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A088
B01111
C077
D077

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168156
B0169161
C0166158
D0166158

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A34600.000000%
B36800.000000%
C39700.000000%
D35600.000000%

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 9096 553 0 0 0.00% 0.00%
B 9089 594 0 0 0.00% 0.00%
C 9120 631 0 0 0.00% 0.00%
D 8621 569 0 0 0.00% 0.00%

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 8 15 5110 506.8 38 37 10.0
A 13 251 2251 221.18 38 37 10.0
A 0 8 1818 177.92 38 37 10.0
B 0 214 5778 583.7 40 39 9.8
B 0 229 1034 101.2 40 39 9.8
B 12 111 863 83.81 40 39 9.8
C 8 128 393 29.54 42 43 11.8
C 9 221 306 22.2 42 43 11.8
C 13 61 305 22.11 42 43 11.8
D 8 195 15236 1342.94 38 37 11.3
D 2 16 6866 603.39 38 37 11.3
D 1 52 5075 445.14 38 37 11.3

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