ASTROSAT CZTI

Data Quality Report

Orbit 43071

Creation date: 2024-06-27T22:47:38.363809
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/AS1C07_001T10_9000005844_43071cztM0_level2.fits modeM0/AS1C07_001T10_9000005844_43071cztM0_level2_quad_clean.evt
Size (bytes)353,923,20086,575,680
Size337.5 MB 82.6 MB
Events in quadrant A3,477,964585,085
Events in quadrant B2,534,083601,109
Events in quadrant C2,426,046566,812
Events in quadrant D4,252,724499,737

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138392
B0111902
C0105842
D0163533

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52681152.182992%
B5268290.550494%
C526820.037965%
D52674228.012151%

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 7211 5269 85 85 1.18% 1.61%
B 7211 5269 16 16 0.22% 0.30%
C 7211 5269 0 0 0.00% 0.00%
D 7210 5268 337 337 4.67% 6.40%

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 633022 5525.7 559 548 114.5
A 15 237 399108 3482.08 559 548 114.5
A 12 189 146715 1277.01 559 548 114.5
B 0 229 162126 1495.14 562 548 108.1
B 4 171 62500 573.27 562 548 108.1
B 5 255 49105 449.32 562 548 108.1
C 15 214 238343 1849.09 552 556 128.6
C 1 128 21773 164.99 552 556 128.6
C 12 249 3853 25.64 552 556 128.6
D 13 249 1120112 8552.6 534 519 130.9
D 1 52 727698 5554.94 534 519 130.9
D 10 118 212834 1621.88 534 519 130.9

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