ASTROSAT CZTI

Data Quality Report

Orbit 42132

Creation date: 2024-06-27T22:37:20.998758
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/AS1A12_088T20_9000005756_42132cztM0_level2.fits modeM0/AS1A12_088T20_9000005756_42132cztM0_level2_quad_clean.evt
Size (bytes)314,539,20079,997,760
Size300.0 MB 76.3 MB
Events in quadrant A2,554,605542,032
Events in quadrant B2,349,317559,393
Events in quadrant C2,323,182530,219
Events in quadrant D4,029,457442,754

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103231
B0103581
C0100031
D0154331

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A495650.100888%
B4956270.544794%
C495610.020178%
D495651310.351090%

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 4956 4956 1 1 0.02% 0.02%
B 4956 4956 21 21 0.42% 0.42%
C 4956 4956 0 0 0.00% 0.00%
D 4956 4956 480 480 9.69% 9.69%

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 421703 3703.63 550 539 113.7
A 13 6 6295 50.62 550 539 113.7
A 3 137 6289 50.56 550 539 113.7
B 5 255 93423 863.02 547 531 107.6
B 3 112 61121 562.91 547 531 107.6
B 0 229 17247 155.3 547 531 107.6
C 15 214 202871 1608.85 534 537 125.8
C 8 79 36211 283.66 534 537 125.8
C 13 61 3666 24.88 534 537 125.8
D 13 249 790977 6333.92 506 492 124.8
D 12 6 540493 4326.87 506 492 124.8
D 1 52 479064 3834.66 506 492 124.8

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