ASTROSAT CZTI

Data Quality Report

Orbit 45035

Creation date: 2024-06-27T23:09:13.717086
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_020T01_9000006040_45035cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45035cztM0_level2_quad_clean.evt
Size (bytes)681,759,360133,185,600
Size650.2 MB 127.0 MB
Events in quadrant A6,830,185894,167
Events in quadrant B5,079,102909,792
Events in quadrant C4,447,560882,088
Events in quadrant D8,232,630764,992

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0262572
B0205202
C0191212
D0302702

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83612022.415979%
B83623574.269314%
C83622623.133222%
D836185210.190169%

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 10100 8362 4 4 0.04% 0.05%
B 10102 8363 161 161 1.59% 1.93%
C 10102 8364 139 139 1.38% 1.66%
D 10101 8363 659 659 6.52% 7.88%

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 3077660 15444.13 954 931 199.2
A 13 248 32474 158.34 954 931 199.2
A 0 243 16893 80.12 954 931 199.2
B 0 189 500125 2678.14 947 919 186.4
B 12 48 422289 2260.56 947 919 186.4
B 5 255 107691 572.81 947 919 186.4
C 14 254 584754 2629.27 943 951 222.0
C 3 233 102621 457.89 943 951 222.0
C 15 208 59098 261.88 943 951 222.0
D 1 52 937331 4058.39 914 885 230.7
D 13 187 708752 3067.77 914 885 230.7
D 13 174 648345 2805.98 914 885 230.7

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