ASTROSAT CZTI

Data Quality Report

Orbit 44784

Creation date: 2024-06-27T23:06:32.200516
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_004T13_9000006022_44784cztM0_level2.fits modeM0/AS1A13_004T13_9000006022_44784cztM0_level2_quad_clean.evt
Size (bytes)607,659,840135,990,720
Size579.5 MB 129.7 MB
Events in quadrant A6,710,097898,055
Events in quadrant B4,382,293924,491
Events in quadrant C4,017,327906,798
Events in quadrant D6,714,064788,669

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0271370
B0191690
C0183870
D0259340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A86343163.659949%
B86333003.475038%
C8633700.810842%
D86336677.726167%

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 8634 8634 53 53 0.61% 0.61%
B 8633 8633 51 51 0.59% 0.59%
C 8633 8633 28 28 0.32% 0.32%
D 8633 8633 525 525 6.08% 6.08%

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 2280913 11180.29 978 956 203.9
A 15 223 592747 2901.98 978 956 203.9
A 13 248 46403 222.86 978 956 203.9
B 5 255 242153 1234.22 977 943 195.4
B 5 172 85017 430.19 977 943 195.4
B 4 158 53433 268.58 977 943 195.4
C 14 254 107178 469.53 968 973 226.2
C 2 14 49969 216.61 968 973 226.2
C 12 2 38208 164.61 968 973 226.2
D 1 52 1271259 5438.98 939 910 233.6
D 13 187 607086 2595.33 939 910 233.6
D 5 235 372492 1590.92 939 910 233.6

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