ASTROSAT CZTI

Data Quality Report

Orbit 11714

Creation date: 2024-06-27T16:17:17.736351
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/AS1G08_075T01_9000001726_11714cztM0_level2.evt modeM0/AS1G08_075T01_9000001726_11714cztM0_level2_quad_clean.evt
Size (bytes)525,893,76089,821,440
Size501.5 MB 85.7 MB
Events in quadrant A4,568,484565,264
Events in quadrant B4,018,414572,326
Events in quadrant C3,075,448568,237
Events in quadrant D3,805,370542,583

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179952
B0163241
C0139661
D0157791

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67621992.942916%
B67622493.682343%
C6762340.502810%
D67621231.818988%

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 6853 6764 65 65 0.95% 0.96%
B 6853 6764 86 86 1.25% 1.27%
C 6853 6764 0 0 0.00% 0.00%
D 6853 6764 89 89 1.30% 1.32%

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 15 1130159 6783.45 810 792 166.5
A 1 162 110800 660.75 810 792 166.5
A 1 178 56778 336.28 810 792 166.5
B 4 239 503080 3223.69 804 784 155.8
B 3 64 136321 869.86 804 784 155.8
B 15 204 90480 575.66 804 784 155.8
C 13 61 5679 26.4 786 789 185.2
C 8 128 3719 15.82 786 789 185.2
C 8 222 3586 15.1 786 789 185.2
D 1 52 271263 1413.83 784 760 191.3
D 13 137 211548 1101.72 784 760 191.3
D 8 195 110862 575.47 784 760 191.3

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