ASTROSAT CZTI

Data Quality Report

Orbit 09974

Creation date: 2024-06-27T15:53:11.538908
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_047T01_9000001424_09974cztM0_level2.evt modeM0/AS1G07_047T01_9000001424_09974cztM0_level2_quad_clean.evt
Size (bytes)520,030,08085,944,960
Size495.9 MB 82.0 MB
Events in quadrant A5,364,390529,562
Events in quadrant B3,172,980560,664
Events in quadrant C2,852,223553,667
Events in quadrant D3,930,896517,588

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02025731
B01373710
C0129426
D01590736

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01302
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A631563910.118765%
B6318430.680595%
C632080.126582%
D63141001.583782%

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 7542 6322 512 512 6.79% 8.10%
B 7542 6323 8 8 0.11% 0.13%
C 7542 6323 0 0 0.00% 0.00%
D 7542 6320 113 113 1.50% 1.79%

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 13 251 2523247 16862.98 730 715 149.6
A 15 174 30289 197.7 730 715 149.6
A 0 226 6668 39.8 730 715 149.6
B 0 85 72635 489.26 762 746 146.9
B 0 187 35947 239.57 762 746 146.9
B 0 214 30253 200.82 762 746 146.9
C 13 61 5495 28.13 729 732 169.3
C 14 67 4146 20.16 729 732 169.3
C 8 222 3162 14.35 729 732 169.3
D 1 52 676906 3687.51 710 693 183.4
D 8 195 132040 716.26 710 693 183.4
D 2 16 128699 698.04 710 693 183.4

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