ASTROSAT CZTI

Data Quality Report

Orbit 23015

Creation date: 2024-06-27T18:48:49.058087
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/AS1C05_004T01_9000003404_23015cztM0_level2.evt modeM0/AS1C05_004T01_9000003404_23015cztM0_level2_quad_clean.evt
Size (bytes)287,026,56054,299,520
Size273.7 MB 51.8 MB
Events in quadrant A1,875,519352,997
Events in quadrant B2,014,968361,367
Events in quadrant C1,941,283339,838
Events in quadrant D2,604,255324,370

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A078611
B082464
C080291
D0102481

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3754381.012254%
B3752751.998934%
C3754932.477357%
D37541965.221097%

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 5119 3755 0 0 0.00% 0.00%
B 5119 3754 17 17 0.33% 0.45%
C 5119 3755 2 2 0.04% 0.05%
D 5119 3755 138 138 2.70% 3.68%

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 11 47 9974 97.13 484 474 97.8
A 13 254 5220 48.52 484 474 97.8
A 0 226 4111 37.18 484 474 97.8
B 4 216 73131 805.34 483 472 90.2
B 6 36 23325 253.3 483 472 90.2
B 12 111 10699 113.35 483 472 90.2
C 14 238 76131 706.09 463 465 107.2
C 9 15 28976 266.05 463 465 107.2
C 0 10 27070 248.27 463 465 107.2
D 1 52 479449 4263.32 459 445 112.4
D 13 153 162896 1445.88 459 445 112.4
D 1 239 105629 936.18 459 445 112.4

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