ASTROSAT CZTI

Data Quality Report

Orbit 09065

Creation date: 2024-06-27T15:40:48.702174
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/AS1A03_046T01_9000001260_09065cztM0_level2.evt modeM0/AS1A03_046T01_9000001260_09065cztM0_level2_quad_clean.evt
Size (bytes)242,853,12053,208,000
Size231.6 MB 50.7 MB
Events in quadrant A2,315,291340,630
Events in quadrant B1,560,725347,176
Events in quadrant C1,423,194344,637
Events in quadrant D1,820,675335,287

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0682
C0680
D0680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09283114
B0704371
C0697068
D0790081

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3433120.349548%
B3434100.291206%
C343540.116448%
D3440441.279070%

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 3469 3468 9 9 0.26% 0.26%
B 3469 3468 1 1 0.03% 0.03%
C 3469 3469 1 1 0.03% 0.03%
D 3469 3466 39 39 1.12% 1.13%

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 8 5 673484 8465.21 379 371 79.5
A 3 1 131462 1648.63 379 371 79.5
A 5 16 17695 217.87 379 371 79.5
B 11 203 24818 330.57 378 369 74.0
B 0 214 22562 300.07 378 369 74.0
B 0 219 16655 220.2 378 369 74.0
C 1 3 6029 67.01 362 363 84.6
C 12 4 4285 46.38 362 363 84.6
C 13 61 2686 27.47 362 363 84.6
D 1 52 88156 881.23 362 353 99.6
D 8 195 69055 689.52 362 353 99.6
D 1 31 65982 658.68 362 353 99.6

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