ASTROSAT CZTI

Data Quality Report

Orbit 37582

Creation date: 2024-06-27T21:41:49.804333
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/AS1T05_053T01_9000005338_37582cztM0_level2.evt modeM0/AS1T05_053T01_9000005338_37582cztM0_level2_quad_clean.evt
Size (bytes)410,941,44057,893,760
Size391.9 MB 55.2 MB
Events in quadrant A2,846,481343,783
Events in quadrant B2,698,735348,507
Events in quadrant C2,713,963349,372
Events in quadrant D3,816,095330,076

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116413
B0115052
C0113422
D0151572

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5443140.257211%
B5443390.716517%
C5443270.496050%
D54433867.091677%

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 7145 5444 7 7 0.10% 0.13%
B 7145 5444 16 16 0.22% 0.29%
C 7145 5444 25 25 0.35% 0.46%
D 7145 5444 410 410 5.74% 7.53%

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 317295 2538.46 613 599 124.8
A 15 222 91844 731.37 613 599 124.8
A 12 189 22759 177.62 613 599 124.8
B 0 230 44898 381.1 611 595 116.2
B 4 81 43981 373.22 611 595 116.2
B 0 213 37565 318.02 611 595 116.2
C 15 214 238543 1714.92 598 603 138.7
C 0 10 119373 856.02 598 603 138.7
C 14 254 11889 81.34 598 603 138.7
D 10 253 1093462 7593.85 580 561 143.9
D 2 249 219269 1519.66 580 561 143.9
D 1 47 84454 582.91 580 561 143.9

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