ASTROSAT CZTI

Data Quality Report

Orbit 10010

Creation date: 2024-06-27T15:53:42.006588
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_022T02_9000001434_10010cztM0_level2.evt modeM0/AS1G07_022T02_9000001434_10010cztM0_level2_quad_clean.evt
Size (bytes)516,156,48087,624,000
Size492.2 MB 83.6 MB
Events in quadrant A3,310,780545,311
Events in quadrant B3,325,007550,343
Events in quadrant C3,134,302565,493
Events in quadrant D5,392,851511,621

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015169819
B015183828
C014935812
D0218231328

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152
B0153
C0151
D0153

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014715
B01484
C01478
D01486

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69181111.604510%
B69331131.629886%
C6916811.171197%
D68334867.112542%

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 8765 7232 0 0 0.00% 0.00%
B 8765 7242 6 6 0.07% 0.08%
C 8765 7238 0 0 0.00% 0.00%
D 8765 7206 392 392 4.47% 5.44%

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 167790 1008.77 813 795 165.5
A 15 239 8174 44.57 813 795 165.5
A 0 226 7349 39.59 813 795 165.5
B 0 214 46285 288.73 816 795 157.5
B 15 85 27167 167.39 816 795 157.5
B 4 81 25083 154.16 816 795 157.5
C 13 61 5874 27.18 802 806 186.5
C 14 67 3148 12.56 802 806 186.5
C 5 128 2327 8.16 802 806 186.5
D 10 118 1177436 6320.87 766 747 186.2
D 8 195 607317 3258.34 766 747 186.2
D 2 16 383120 2054.01 766 747 186.2

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