ASTROSAT CZTI

Data Quality Report

Orbit 42943

Creation date: 2024-06-27T22:46:06.899215
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_143T01_9000005834_42943cztM0_level2.fits modeM0/AS1T05_143T01_9000005834_42943cztM0_level2_quad_clean.evt
Size (bytes)226,152,00062,513,280
Size215.7 MB 59.6 MB
Events in quadrant A2,521,646413,739
Events in quadrant B1,744,254431,666
Events in quadrant C1,784,964404,448
Events in quadrant D2,023,370374,559

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100681
B078131
C076913
D086761

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3799922.421690%
B379960.157936%
C379820.052659%
D3798310.816219%

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 5110 3798 75 75 1.47% 1.97%
B 5110 3798 1 1 0.02% 0.03%
C 5109 3797 0 0 0.00% 0.00%
D 5109 3797 32 32 0.63% 0.84%

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 389935 4457.51 421 411 87.4
A 15 222 248559 2839.68 421 411 87.4
A 15 237 213966 2443.81 421 411 87.4
B 4 81 33469 398.99 421 409 82.9
B 15 85 18618 219.76 421 409 82.9
B 12 111 10275 119.07 421 409 82.9
C 15 214 166936 1722.81 412 413 96.7
C 14 254 4943 46.87 412 413 96.7
C 15 111 3309 29.96 412 413 96.7
D 2 249 102361 1001.63 413 400 101.8
D 1 52 93756 917.1 413 400 101.8
D 12 6 64074 625.51 413 400 101.8

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