ASTROSAT CZTI

Data Quality Report

Orbit 08523

Creation date: 2024-06-27T15:33:49.573357
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/AS1G07_060T01_9000001200_08523cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08523cztM0_level2_quad_clean.evt
Size (bytes)426,075,84089,156,160
Size406.3 MB 85.0 MB
Events in quadrant A2,985,974567,955
Events in quadrant B3,504,729571,981
Events in quadrant C2,916,235568,028
Events in quadrant D3,060,276544,416

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132073
B0147832
C0131172
D0138782

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6417230.358423%
B64171372.134954%
C641780.124669%
D6417450.701262%

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 7612 6418 2 2 0.03% 0.03%
B 7612 6418 76 76 1.00% 1.18%
C 7612 6418 0 0 0.00% 0.00%
D 7612 6418 23 23 0.30% 0.36%

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 5 58992 378.88 756 739 153.8
A 5 16 16628 103.34 756 739 153.8
A 0 226 7014 40.81 756 739 153.8
B 10 16 393495 2751.58 757 739 142.7
B 5 255 56998 394.14 757 739 142.7
B 0 214 44065 303.53 757 739 142.7
C 8 128 15983 88.57 740 745 172.0
C 8 112 6557 33.78 740 745 172.0
C 8 144 6033 30.74 740 745 172.0
D 1 52 231750 1294.31 727 708 178.5
D 13 223 26783 146.07 727 708 178.5
D 2 234 19293 104.11 727 708 178.5

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