ASTROSAT CZTI

Data Quality Report

Orbit 33552

Creation date: 2024-06-27T20:50:03.916683
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/AS1A11_060T01_9000004808_33552cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33552cztM0_level2_quad_clean.evt
Size (bytes)443,044,80069,010,560
Size422.5 MB 65.8 MB
Events in quadrant A3,062,062441,683
Events in quadrant B2,743,836459,313
Events in quadrant C3,795,899416,952
Events in quadrant D3,466,571410,884

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122933
B0111262
C0146392
D0139502

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5144571.108087%
B5144310.602644%
C51442554.957232%
D5144510.991446%

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 7088 5145 56 56 0.79% 1.09%
B 7088 5145 17 17 0.24% 0.33%
C 7088 5145 259 259 3.65% 5.03%
D 7088 5145 37 37 0.52% 0.72%

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 15 169 605826 4846.2 634 624 124.9
A 13 254 8582 63.72 634 624 124.9
A 3 137 5889 42.16 634 624 124.9
B 5 172 87021 705.33 644 628 122.5
B 4 251 43423 349.39 644 628 122.5
B 0 190 30685 245.39 644 628 122.5
C 0 10 377353 2676.58 611 615 140.8
C 3 233 340838 2417.16 611 615 140.8
C 14 254 233400 1653.85 611 615 140.8
D 8 195 754040 5075.74 615 600 148.4
D 2 250 141854 951.59 615 600 148.4
D 13 249 75613 505.34 615 600 148.4

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