ASTROSAT CZTI

Data Quality Report

Orbit 23203

Creation date: 2024-06-27T18:51:14.767372
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_175T01_9000003428_23203cztM0_level2.evt modeM0/AS1T03_175T01_9000003428_23203cztM0_level2_quad_clean.evt
Size (bytes)466,848,00073,117,440
Size445.2 MB 69.7 MB
Events in quadrant A3,218,634450,536
Events in quadrant B3,275,424459,149
Events in quadrant C3,495,381448,689
Events in quadrant D3,744,654439,302

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134311
B0135691
C0143991
D0152521

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5955621.041142%
B5955831.393787%
C59551632.737196%
D59561472.468099%

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 7320 5956 0 0 0.00% 0.00%
B 7320 5956 0 0 0.00% 0.00%
C 7320 5956 22 22 0.30% 0.37%
D 7321 5956 49 49 0.67% 0.82%

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 13 254 8803 48.12 835 820 165.9
A 0 226 7054 37.58 835 820 165.9
A 3 137 6768 35.85 835 820 165.9
B 0 190 20830 129.49 832 813 154.6
B 12 111 17455 107.66 832 813 154.6
B 11 111 15496 94.99 832 813 154.6
C 0 10 145198 774.07 813 822 186.5
C 14 238 129733 691.15 813 822 186.5
C 7 247 40579 213.16 813 822 186.5
D 12 233 227029 1146.64 827 806 197.3
D 1 52 161867 816.36 827 806 197.3
D 12 217 104465 525.41 827 806 197.3

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