ASTROSAT CZTI

Data Quality Report

Orbit 17010

Creation date: 2024-06-27T17:31:02.672525
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/AS1A05_225T02_9000002526_17010cztM0_level2.evt modeM0/AS1A05_225T02_9000002526_17010cztM0_level2_quad_clean.evt
Size (bytes)298,019,52077,909,760
Size284.2 MB 74.3 MB
Events in quadrant A1,984,021528,288
Events in quadrant B2,162,747534,171
Events in quadrant C2,307,156506,293
Events in quadrant D2,286,889496,748

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087240
B091390
C096200
D096490

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A417510.023952%
B4176390.933908%
C4176180.431034%
D4176942.250958%

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 4176 4176 0 0 0.00% 0.00%
B 4177 4177 13 13 0.31% 0.31%
C 4177 4177 0 0 0.00% 0.00%
D 4177 4177 76 76 1.82% 1.82%

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 23 108816 1110.37 479 470 97.6
A 15 174 13932 137.96 479 470 97.6
A 0 226 11563 113.68 479 470 97.6
B 3 64 117881 1308.48 474 463 89.7
B 6 36 45621 503.23 474 463 89.7
B 7 220 43778 482.69 474 463 89.7
C 3 233 463006 4346.81 453 457 106.4
C 14 238 73635 687.69 453 457 106.4
C 13 61 3187 25.66 453 457 106.4
D 1 52 380095 3386.78 458 444 112.1
D 4 239 130019 1155.91 458 444 112.1
D 10 70 20533 179.21 458 444 112.1

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