ASTROSAT CZTI

Data Quality Report

Orbit 44410

Creation date: 2024-06-27T23:03:16.037251
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_008T08_9000005998_44410cztM0_level2.fits modeM0/AS1A13_008T08_9000005998_44410cztM0_level2_quad_clean.evt
Size (bytes)1,832,316,480268,240,320
Size1.7 GB 255.8 MB
Events in quadrant A13,187,1861,963,963
Events in quadrant B9,857,4262,009,695
Events in quadrant C10,490,1221,873,918
Events in quadrant D32,825,836966,859

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03820
B03820
C03820
D03820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0552002
B0420542
C0447682
D01106142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A189703291.734317%
B189694462.351205%
C189697774.096157%
D18970924848.750659%

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 20580 18974 23 23 0.11% 0.12%
B 20579 18973 144 144 0.70% 0.76%
C 20579 18973 555 555 2.70% 2.93%
D 20580 18974 8975 8975 43.61% 47.30%

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 4651276 10357.94 2140 2092 448.9
A 13 248 122312 267.84 2140 2092 448.9
A 8 4 66097 142.6 2140 2092 448.9
B 0 229 307677 726.12 2134 2069 420.9
B 5 255 279852 660.01 2134 2069 420.9
B 5 235 274636 647.61 2134 2069 420.9
C 15 158 1506309 3117.04 2057 2071 482.6
C 14 254 504931 1042.01 2057 2071 482.6
C 12 16 168166 344.18 2057 2071 482.6
D 12 17 19294771 50535.88 1490 1444 381.8
D 2 249 1336395 3496.7 1490 1444 381.8
D 4 221 1061956 2777.85 1490 1444 381.8

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