ASTROSAT CZTI

Data Quality Report

Orbit 46161

Creation date: 2024-06-27T23:19:52.318075
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/AS1A13_092T16_9000006178_46161cztM0_level2.fits modeM0/AS1A13_092T16_9000006178_46161cztM0_level2_quad_clean.evt
Size (bytes)479,232,00069,134,400
Size457.0 MB 65.9 MB
Events in quadrant A3,953,444501,054
Events in quadrant B2,655,291514,914
Events in quadrant C7,392,770305,635
Events in quadrant D3,363,553433,247

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147370
B0108890
C0252960
D0134900

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A481790.186838%
B4818240.498132%
C4818213244.250726%
D48182845.894562%

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 4817 4817 1 1 0.02% 0.02%
B 4818 4818 13 13 0.27% 0.27%
C 4817 4817 1544 1544 32.05% 32.05%
D 4818 4818 233 233 4.84% 4.84%

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 10 83 1893099 17246.56 519 508 109.7
A 9 191 20148 178.97 519 508 109.7
A 0 247 15097 132.94 519 508 109.7
B 3 112 427530 4163.43 516 499 102.6
B 5 172 116254 1128.58 516 499 102.6
B 15 201 45674 440.44 516 499 102.6
C 14 254 5719633 58656.05 410 411 97.5
C 12 2 40781 414.03 410 411 97.5
C 2 14 10481 103.28 410 411 97.5
D 2 249 434368 3451.67 496 479 125.7
D 13 249 403489 3206.02 496 479 125.7
D 12 218 227943 1809.52 496 479 125.7

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