ASTROSAT CZTI

Data Quality Report

Orbit 05187

Creation date: 2024-06-27T14:52:35.320570
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_243T01_9000000654_05187cztM0_level2.evt modeM0/AS1G05_243T01_9000000654_05187cztM0_level2_quad_clean.evt
Size (bytes)444,150,72064,595,520
Size423.6 MB 61.6 MB
Events in quadrant A2,889,830388,734
Events in quadrant B3,067,557388,558
Events in quadrant C2,829,665393,221
Events in quadrant D4,249,910360,258

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128542
B0130772
C0127430
D0168190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60833125.129048%
B60832984.898899%
C60841662.728468%
D60845138.431953%

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 6084 6084 6 6 0.10% 0.10%
B 6084 6084 2 2 0.03% 0.03%
C 6084 6084 0 0 0.00% 0.00%
D 6084 6084 303 303 4.98% 4.98%

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 35072 223.68 734 716 153.6
A 0 247 25659 162.4 734 716 153.6
A 0 226 9370 56.34 734 716 153.6
B 4 80 71360 486.61 742 722 145.2
B 15 204 69047 470.68 742 722 145.2
B 15 54 16545 109.0 742 722 145.2
C 1 16 10423 57.62 720 725 168.3
C 12 4 5907 30.79 720 725 168.3
C 13 61 5814 30.24 720 725 168.3
D 14 34 752064 4240.89 711 687 177.2
D 2 136 482395 2718.84 711 687 177.2
D 2 33 135523 761.04 711 687 177.2

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