ASTROSAT CZTI

Data Quality Report

Orbit 43547

Creation date: 2024-06-27T22:53:02.276650
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_174T01_9000005880_43547cztM0_level2.fits modeM0/AS1A05_174T01_9000005880_43547cztM0_level2_quad_clean.evt
Size (bytes)1,022,561,28064,048,320
Size975.2 MB 61.1 MB
Events in quadrant A6,792,698648,982
Events in quadrant B3,224,612701,895
Events in quadrant C14,919,066126,179
Events in quadrant D12,475,83558,522

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0242121
B0132831
C0481301
D0409261

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A569181314.285714%
B56911272.231594%
C5691564299.138991%
D5692567199.631061%

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 6886 5691 293 293 4.26% 5.15%
B 6886 5692 23 23 0.33% 0.40%
C 6885 5690 5483 5483 79.64% 96.36%
D 6886 5691 4490 4490 65.20% 78.90%

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 0 228 2896378 22028.74 631 618 131.5
A 10 83 607001 4612.9 631 618 131.5
A 15 222 391731 2975.29 631 618 131.5
B 3 42 362557 2787.43 664 646 129.8
B 0 155 52425 398.8 664 646 129.8
B 0 85 50682 385.38 664 646 129.8
C 15 126 6321980 200290.68 129 130 31.6
C 15 142 3646935 115539.13 129 130 31.6
C 15 174 2972428 94169.2 129 130 31.6
D 4 216 9161243 292140.27 78 73 31.4
D 4 212 1214184 38716.75 78 73 31.4
D 14 210 265725 8471.37 78 73 31.4

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