ASTROSAT CZTI

Data Quality Report

Orbit 43045

Creation date: 2024-06-27T22:47:18.440452
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/AS1T05_148T01_9000005838_43045cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43045cztM0_level2_quad_clean.evt
Size (bytes)428,391,360111,830,400
Size408.5 MB 106.6 MB
Events in quadrant A3,684,541790,058
Events in quadrant B3,968,364743,352
Events in quadrant C3,060,354766,284
Events in quadrant D4,671,349661,695

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150982
B0158052
C0127662
D0179862

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6086490.805127%
B60864367.163983%
C6086200.328623%
D60864106.736773%

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 8742 6088 28 28 0.32% 0.46%
B 8742 6088 350 350 4.00% 5.75%
C 8742 6088 16 16 0.18% 0.26%
D 8742 6088 329 329 3.76% 5.40%

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 10 83 633533 4136.78 711 701 153.0
A 15 237 217047 1414.24 711 701 153.0
A 12 189 80596 522.27 711 701 153.0
B 0 186 1022921 7460.01 682 668 137.0
B 0 229 92458 669.85 682 668 137.0
B 5 255 52799 380.43 682 668 137.0
C 15 214 268508 1587.87 691 699 168.7
C 0 207 68453 401.72 691 699 168.7
C 14 254 21632 124.11 691 699 168.7
D 1 52 1924800 11092.91 670 650 173.5
D 10 118 109731 628.86 670 650 173.5
D 2 234 29929 168.8 670 650 173.5

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