ASTROSAT CZTI

Data Quality Report

Orbit 05407

Creation date: 2024-06-27T14:54:50.858681
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/AS1G05_214T01_9000000684_05407cztM0_level2.evt modeM0/AS1G05_214T01_9000000684_05407cztM0_level2_quad_clean.evt
Size (bytes)1,464,292,800200,998,080
Size1.4 GB 191.7 MB
Events in quadrant A8,941,9811,211,004
Events in quadrant B9,043,3271,209,639
Events in quadrant C8,841,4601,226,775
Events in quadrant D16,232,6481,127,183

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03880
B03880
C03880
D03880

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0395236
B0395055
C0395505
D0611225

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A190535142.697738%
B190535332.797460%
C190534332.272608%
D1905316838.833255%

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 20693 19058 10 10 0.05% 0.05%
B 20693 19058 12 12 0.06% 0.06%
C 20693 19058 1 1 0.00% 0.01%
D 20693 19058 1327 1327 6.41% 6.96%

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 50 155565 333.27 2248 2194 460.2
A 0 247 67776 142.51 2248 2194 460.2
A 13 6 51110 106.29 2248 2194 460.2
B 15 204 62250 136.99 2270 2211 438.3
B 15 54 49938 108.9 2270 2211 438.3
B 12 111 40542 87.46 2270 2211 438.3
C 1 16 199082 383.86 2201 2210 512.9
C 9 247 31222 56.57 2201 2210 512.9
C 13 61 17684 30.17 2201 2210 512.9
D 2 63 6548492 12270.48 2150 2078 533.5
D 2 152 438673 818.35 2150 2078 533.5
D 2 136 204075 378.62 2150 2078 533.5

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