ASTROSAT CZTI

Data Quality Report

Orbit 19610

Creation date: 2024-06-27T18:04:43.529904
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/AS1T03_115T01_9000002914_19610cztM0_level2.evt modeM0/AS1T03_115T01_9000002914_19610cztM0_level2_quad_clean.evt
Size (bytes)439,741,440106,182,720
Size419.4 MB 101.3 MB
Events in quadrant A3,178,333697,981
Events in quadrant B3,318,057712,947
Events in quadrant C3,187,318687,447
Events in quadrant D3,196,272668,488

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137843
B0141562
C0137032
D0139982

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6440280.434783%
B6440961.490683%
C6440691.071429%
D6440370.574534%

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 7600 6441 11 11 0.14% 0.17%
B 7600 6441 52 52 0.68% 0.81%
C 7600 6441 0 0 0.00% 0.00%
D 7600 6441 6 6 0.08% 0.09%

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 9 143 88937 558.43 787 770 157.9
A 5 16 48733 303.79 787 770 157.9
A 15 174 8970 51.94 787 770 157.9
B 3 64 144516 967.35 790 769 148.6
B 7 220 38476 253.75 790 769 148.6
B 12 111 17727 114.12 790 769 148.6
C 14 238 119220 659.67 764 770 179.6
C 3 233 61465 338.02 764 770 179.6
C 9 54 21631 116.18 764 770 179.6
D 1 52 175561 939.04 766 746 186.2
D 7 238 86669 461.54 766 746 186.2
D 2 234 26405 137.83 766 746 186.2

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