ASTROSAT CZTI

Data Quality Report

Orbit 09210

Creation date: 2024-06-27T15:42:44.944508
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/AS1C02_042T02_9000001284_09210cztM0_level2.evt modeM0/AS1C02_042T02_9000001284_09210cztM0_level2_quad_clean.evt
Size (bytes)222,661,44037,892,160
Size212.3 MB 36.1 MB
Events in quadrant A1,784,903230,664
Events in quadrant B1,540,233237,608
Events in quadrant C1,583,843232,900
Events in quadrant D1,618,326222,742

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D031

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08418
B08418
C08426
D08418

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A095632384
B087992148
C089832145
D095132500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A31112257.232401%
B31501946.158730%
C31611494.713698%
D30761775.754226%

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 4386 3796 0 0 0.00% 0.00%
B 4388 3832 0 0 0.00% 0.00%
C 4387 3823 0 0 0.00% 0.00%
D 4387 3760 4 4 0.09% 0.11%

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 8 5 209146 2615.43 380 371 79.8
A 1 162 44706 555.41 380 371 79.8
A 13 251 43038 534.51 380 371 79.8
B 0 214 14775 186.71 385 374 77.1
B 0 230 9895 123.44 385 374 77.1
B 12 111 8185 101.27 385 374 77.1
C 3 233 113088 1262.75 376 376 89.3
C 13 61 2898 28.25 376 376 89.3
C 12 4 1028 7.3 376 376 89.3
D 1 52 185745 2004.77 362 351 92.5
D 9 64 25586 272.88 362 351 92.5
D 2 234 16050 169.76 362 351 92.5

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