ASTROSAT CZTI

Data Quality Report

Orbit 08419

Creation date: 2024-06-27T15:32:31.076516
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_053T01_9000001186_08419cztM0_level2.evt modeM0/AS1G07_053T01_9000001186_08419cztM0_level2_quad_clean.evt
Size (bytes)257,696,64043,888,320
Size245.8 MB 41.9 MB
Events in quadrant A1,863,566264,166
Events in quadrant B1,993,838271,171
Events in quadrant C1,843,341266,272
Events in quadrant D1,836,250250,981

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A079712
B083141
C079261
D080731

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3901100.256345%
B3901240.615227%
C390180.205076%
D390160.153807%

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 4956 3902 0 0 0.00% 0.00%
B 4956 3902 0 0 0.00% 0.00%
C 4956 3902 0 0 0.00% 0.00%
D 4956 3902 5 5 0.10% 0.13%

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 14 111 5311 48.23 481 471 100.3
A 0 226 4565 40.8 481 471 100.3
A 12 194 4300 38.16 481 471 100.3
B 0 214 81163 865.56 485 473 93.2
B 5 255 14293 148.25 485 473 93.2
B 12 111 9758 99.6 485 473 93.2
C 13 61 3624 28.36 472 475 111.1
C 3 202 1236 6.85 472 475 111.1
C 14 67 1068 5.34 472 475 111.1
D 2 14 30534 259.86 468 454 115.8
D 2 234 11541 95.78 468 454 115.8
D 7 71 8450 69.08 468 454 115.8

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