ASTROSAT CZTI

Data Quality Report

Orbit 37414

Creation date: 2024-06-27T21:39:41.301677
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/AS1A09_002T01_9000005322_37414cztM0_level2.evt modeM0/AS1A09_002T01_9000005322_37414cztM0_level2_quad_clean.evt
Size (bytes)475,741,44077,901,120
Size453.7 MB 74.3 MB
Events in quadrant A3,124,438498,723
Events in quadrant B2,759,278510,537
Events in quadrant C2,867,214506,807
Events in quadrant D5,287,737461,606

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126655
B0118952
C0119482
D0194097

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5440400.735294%
B5441851.562213%
C5441631.157875%
D54394668.567751%

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 7054 5442 27 27 0.38% 0.50%
B 7054 5442 47 47 0.67% 0.86%
C 7054 5442 60 60 0.85% 1.10%
D 7055 5442 463 463 6.56% 8.51%

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 15 222 433856 3565.15 601 588 121.5
A 10 83 300674 2469.26 601 588 121.5
A 9 143 20014 159.85 601 588 121.5
B 5 255 165399 1420.23 600 584 116.0
B 5 172 129298 1109.14 600 584 116.0
B 4 232 30299 256.06 600 584 116.0
C 15 214 230558 1685.75 584 589 136.4
C 14 254 183068 1337.63 584 589 136.4
C 0 10 99070 721.9 584 589 136.4
D 12 227 1215104 8684.44 570 553 139.9
D 12 235 856951 6123.53 570 553 139.9
D 2 152 234048 1669.57 570 553 139.9

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