ASTROSAT CZTI

Data Quality Report

Orbit 03360

Creation date: 2024-06-27T14:28:01.367292
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/AS1G05_112T01_9000000452_03360cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03360cztM0_level2_quad_clean.evt
Size (bytes)412,971,84070,531,200
Size393.8 MB 67.3 MB
Events in quadrant A2,988,141426,133
Events in quadrant B3,218,787429,477
Events in quadrant C3,059,991429,339
Events in quadrant D2,809,953409,573

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133512
B0138371
C0135401
D0131451

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6313651.029621%
B6313510.807857%
C6313290.459370%
D6313290.459370%

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 7233 6314 32 32 0.44% 0.51%
B 7233 6314 0 0 0.00% 0.00%
C 7233 6314 4 4 0.06% 0.06%
D 7233 6314 8 8 0.11% 0.13%

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 0 50 95031 630.15 725 708 149.7
A 14 249 91175 604.39 725 708 149.7
A 0 226 7738 46.97 725 708 149.7
B 15 204 278596 1936.47 734 716 143.5
B 14 167 50558 347.33 734 716 143.5
B 4 81 16226 108.08 734 716 143.5
C 1 16 239207 1421.84 711 716 167.7
C 12 4 16507 94.14 711 716 167.7
C 14 223 10676 59.38 711 716 167.7
D 13 223 68512 389.66 707 684 174.1
D 10 34 22205 123.63 707 684 174.1
D 13 174 18223 100.76 707 684 174.1

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