ASTROSAT CZTI

Data Quality Report

Orbit 31690

Creation date: 2024-06-27T20:31:35.687007
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/AS1A10_103T09_9000004630_31690cztM0_level2.evt modeM0/AS1A10_103T09_9000004630_31690cztM0_level2_quad_clean.evt
Size (bytes)127,094,40011,050,560
Size121.2 MB 10.5 MB
Events in quadrant A605,64060,108
Events in quadrant B1,034,24457,771
Events in quadrant C1,362,76556,681
Events in quadrant D750,51156,779

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03113315
B04688552
C05466453
D03451394

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0324
B0313
C0324
D0324

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A138000.000000%
B136270.513950%
C13691158.400292%
D137870.507983%

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 1495 1426 0 0 0.00% 0.00%
B 1491 1394 0 0 0.00% 0.00%
C 1496 1408 35 35 2.34% 2.49%
D 1493 1424 6 6 0.40% 0.42%

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 0 13 12463 379.16 153 150 32.5
A 13 254 2593 75.23 153 150 32.5
A 3 137 1647 46.1 153 150 32.5
B 6 159 392302 12438.81 153 148 31.5
B 10 245 18624 586.03 153 148 31.5
B 0 229 10153 317.34 153 148 31.5
C 3 233 756572 20697.0 146 146 36.5
C 14 238 23484 638.56 146 146 36.5
C 0 10 6077 162.28 146 146 36.5
D 8 195 120151 3190.92 147 142 37.6
D 12 227 24331 643.16 147 142 37.6
D 2 250 11644 305.83 147 142 37.6

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