ASTROSAT CZTI

Data Quality Report

Orbit 44404

Creation date: 2024-06-27T23:03:11.943423
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_44404cztM0_level2.fits modeM0/AS1A13_008T08_9000005998_44404cztM0_level2_quad_clean.evt
Size (bytes)504,262,08098,562,240
Size480.9 MB 94.0 MB
Events in quadrant A4,583,294665,804
Events in quadrant B3,614,976681,362
Events in quadrant C3,254,466660,299
Events in quadrant D6,728,658540,391

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0188712
B0150391
C0141351
D0242731

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62461933.089978%
B62472113.377621%
C6247861.376661%
D624794815.175284%

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 6976 6247 21 21 0.30% 0.34%
B 6977 6247 95 95 1.36% 1.52%
C 6977 6248 36 36 0.52% 0.58%
D 6977 6247 933 933 13.37% 14.94%

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 1717870 11348.65 711 695 151.3
A 13 248 71968 471.04 711 695 151.3
A 0 243 33589 217.39 711 695 151.3
B 5 172 375060 2628.78 707 687 142.4
B 5 255 113756 793.95 707 687 142.4
B 5 235 78201 544.29 707 687 142.4
C 14 254 280716 1699.16 691 695 164.8
C 3 233 139034 839.44 691 695 164.8
C 2 14 77390 465.38 691 695 164.8
D 4 221 984267 5942.24 654 635 165.5
D 1 52 741035 4472.85 654 635 165.5
D 6 239 656723 3963.51 654 635 165.5

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