ASTROSAT CZTI

Data Quality Report

Orbit 33508

Creation date: 2024-06-27T20:49:35.513315
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/AS1A11_060T01_9000004804_33508cztM0_level2.evt modeM0/AS1A11_060T01_9000004804_33508cztM0_level2_quad_clean.evt
Size (bytes)434,652,48065,831,040
Size414.5 MB 62.8 MB
Events in quadrant A2,440,971420,750
Events in quadrant B3,395,978422,148
Events in quadrant C3,364,378405,605
Events in quadrant D3,612,567383,770

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104293
B0133012
C0134982
D0143082

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A515460.116414%
B51541703.298409%
C5154891.726814%
D51541082.095460%

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 7037 5155 0 0 0.00% 0.00%
B 7037 5155 126 126 1.79% 2.44%
C 7037 5155 78 78 1.11% 1.51%
D 7037 5155 106 106 1.51% 2.06%

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 13 6 8110 59.43 629 620 126.0
A 13 254 7949 58.15 629 620 126.0
A 3 137 6136 43.77 629 620 126.0
B 5 255 537693 4421.43 628 612 121.5
B 5 172 388421 3192.57 628 612 121.5
B 12 111 14180 111.7 628 612 121.5
C 15 214 224296 1581.38 613 619 141.4
C 0 10 208209 1467.65 613 619 141.4
C 3 233 201101 1417.4 613 619 141.4
D 8 195 739010 5013.35 605 590 147.3
D 2 250 196695 1331.41 605 590 147.3
D 12 6 102123 689.34 605 590 147.3

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