ASTROSAT CZTI

Data Quality Report

Orbit 45132

Creation date: 2024-06-27T23:09:48.836409
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/AS1A13_017T02_9000006046_45132cztM0_level2.fits modeM0/AS1A13_017T02_9000006046_45132cztM0_level2_quad_clean.evt
Size (bytes)693,290,880126,748,800
Size661.2 MB 120.9 MB
Events in quadrant A8,165,777796,005
Events in quadrant B4,539,969887,879
Events in quadrant C4,565,045854,463
Events in quadrant D7,758,206729,958

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03011011
B0188639
C0193256
D02868113

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A818795211.628191%
B81873314.042995%
C81883334.066927%
D8190104012.698413%

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 8206 8191 412 412 5.02% 5.03%
B 8206 8191 18 18 0.22% 0.22%
C 8207 8192 106 106 1.29% 1.29%
D 8207 8192 730 730 8.89% 8.91%

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 10 83 2749447 13703.38 953 929 200.6
A 15 223 1700998 8476.09 953 929 200.6
A 0 243 19049 90.34 953 929 200.6
B 0 183 156355 784.45 986 954 198.1
B 0 155 133535 669.26 986 954 198.1
B 5 255 102526 512.73 986 954 198.1
C 14 254 521458 2253.06 969 974 231.0
C 15 208 124232 533.56 969 974 231.0
C 12 250 43020 182.01 969 974 231.0
D 13 249 790460 3252.44 947 914 242.8
D 5 235 613008 2521.44 947 914 242.8
D 4 223 526712 2165.96 947 914 242.8

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