ASTROSAT CZTI

Data Quality Report

Orbit 42725

Creation date: 2024-06-27T22:43:30.430690
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_013T01_9000005822_42725cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42725cztM0_level2_quad_clean.evt
Size (bytes)351,365,76096,333,120
Size335.1 MB 91.9 MB
Events in quadrant A3,292,093646,128
Events in quadrant B2,850,772657,957
Events in quadrant C2,861,540633,672
Events in quadrant D3,546,247569,884

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131942
B0125972
C0121082
D0146212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0290
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5853130.222108%
B5853310.529643%
C5853100.170853%
D58532233.810012%

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 7257 5854 2 2 0.03% 0.03%
B 7257 5854 20 20 0.28% 0.34%
C 7257 5854 0 0 0.00% 0.00%
D 7257 5854 204 204 2.81% 3.48%

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 634850 4733.56 648 634 134.0
A 12 189 118964 883.17 648 634 134.0
A 13 248 21138 153.03 648 634 134.0
B 6 235 171171 1368.97 638 621 124.6
B 5 172 68941 548.39 638 621 124.6
B 5 255 25654 200.93 638 621 124.6
C 15 214 246003 1671.02 629 632 146.8
C 3 233 85542 578.25 629 632 146.8
C 8 79 66217 446.64 629 632 146.8
D 2 249 792558 5189.8 625 607 152.6
D 13 249 80323 522.39 625 607 152.6
D 9 19 68119 442.42 625 607 152.6

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