ASTROSAT CZTI

Data Quality Report

Orbit 05216

Creation date: 2024-06-27T14:52:40.840819
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_141T01_9000000664_05216cztM0_level2.evt modeM0/AS1G05_141T01_9000000664_05216cztM0_level2_quad_clean.evt
Size (bytes)474,511,68087,249,600
Size452.5 MB 83.2 MB
Events in quadrant A3,461,580534,419
Events in quadrant B3,596,522534,702
Events in quadrant C3,316,198542,879
Events in quadrant D3,496,919518,923

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01543130
B0155559
C01508213
D01570822

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01482
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73421441.961318%
B73521401.904244%
C7350580.789116%
D73461161.579091%

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 7591 7357 10 10 0.13% 0.14%
B 7591 7357 14 14 0.18% 0.19%
C 7591 7357 0 0 0.00% 0.00%
D 7591 7357 42 42 0.55% 0.57%

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 111611 630.39 856 836 175.7
A 4 2 30417 168.34 856 836 175.7
A 13 251 16603 89.73 856 836 175.7
B 15 204 71926 421.28 862 841 168.7
B 0 219 50511 294.37 862 841 168.7
B 15 54 45399 264.07 862 841 168.7
C 1 16 63597 325.28 828 833 193.0
C 14 67 9297 43.86 828 833 193.0
C 13 61 6746 30.64 828 833 193.0
D 2 33 167802 825.42 828 802 202.3
D 2 136 92880 455.11 828 802 202.3
D 10 15 41457 200.94 828 802 202.3

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