ASTROSAT CZTI

Data Quality Report

Orbit 29404

Creation date: 2024-06-27T20:03:47.249471
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/AS1A10_102T11_9000004230_29404cztM0_level2.evt modeM0/AS1A10_102T11_9000004230_29404cztM0_level2_quad_clean.evt
Size (bytes)432,227,52057,504,960
Size412.2 MB 54.8 MB
Events in quadrant A2,202,188361,597
Events in quadrant B2,440,160365,197
Events in quadrant C2,735,157354,460
Events in quadrant D5,404,871341,617

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A094401
B0101061
C0111301
D0191553

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4526801.767565%
B45261242.739726%
C45261783.932833%
D4525107223.690608%

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 4806 4527 2 2 0.04% 0.04%
B 4806 4527 13 13 0.27% 0.29%
C 4806 4527 0 0 0.00% 0.00%
D 4805 4526 858 858 17.86% 18.96%

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 0 13 28857 245.07 563 551 115.5
A 13 254 8063 65.04 563 551 115.5
A 3 137 5560 43.37 563 551 115.5
B 0 229 90917 833.75 553 538 108.4
B 10 245 77656 711.41 553 538 108.4
B 15 32 36081 327.88 553 538 108.4
C 3 233 521526 4153.66 531 531 125.4
C 14 238 87751 695.37 531 531 125.4
C 10 9 20986 163.08 531 531 125.4
D 8 195 1771699 14841.87 498 484 119.3
D 12 33 1155382 9677.45 498 484 119.3
D 1 52 467641 3914.53 498 484 119.3

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