ASTROSAT CZTI

Data Quality Report

Orbit 13528

Creation date: 2024-06-27T16:42:08.312442
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/AS1A04_048T01_9000001992_13528cztM0_level2.evt modeM0/AS1A04_048T01_9000001992_13528cztM0_level2_quad_clean.evt
Size (bytes)443,436,48094,700,160
Size422.9 MB 90.3 MB
Events in quadrant A3,113,851605,779
Events in quadrant B3,246,804618,724
Events in quadrant C3,425,931603,380
Events in quadrant D3,187,936573,402

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136493
B0138772
C0141172
D0140512

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6700210.313433%
B6700420.626866%
C6700390.582090%
D6700230.343284%

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 7666 6701 2 2 0.03% 0.03%
B 7666 6702 10 10 0.13% 0.15%
C 7666 6701 1 1 0.01% 0.01%
D 7666 6701 4 4 0.05% 0.06%

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 11 29 17018 99.52 797 781 163.2
A 2 250 11197 63.84 797 781 163.2
A 4 2 10045 56.78 797 781 163.2
B 4 142 50895 329.01 802 781 152.3
B 12 111 18072 113.52 802 781 152.3
B 0 189 17144 107.43 802 781 152.3
C 3 233 354172 1948.38 787 790 181.4
C 13 61 5555 26.27 787 790 181.4
C 14 234 2400 8.88 787 790 181.4
D 12 110 130297 699.31 776 756 185.2
D 2 136 33379 176.11 776 756 185.2
D 13 122 28627 150.46 776 756 185.2

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