ASTROSAT CZTI

Data Quality Report

Orbit 42112

Creation date: 2024-06-27T22:37:02.465576
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_044T22_9000005750_42112cztM0_level2.fits modeM0/AS1A12_044T22_9000005750_42112cztM0_level2_quad_clean.evt
Size (bytes)380,655,36085,150,080
Size363.0 MB 81.2 MB
Events in quadrant A5,447,488538,796
Events in quadrant B2,217,807611,550
Events in quadrant C2,497,692580,575
Events in quadrant D3,550,346506,945

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0195652
B097592
C0101913
D0138062

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0300
C0300
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A48524839.954658%
B485280.164880%
C4851340.700886%
D48513206.596578%

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 6945 4853 469 469 6.75% 9.66%
B 6945 4853 0 0 0.00% 0.00%
C 6944 4852 27 27 0.39% 0.56%
D 6944 4852 314 314 4.52% 6.47%

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 15 222 2849643 25533.52 546 536 111.6
A 10 83 476950 4269.59 546 536 111.6
A 13 6 9868 83.63 546 536 111.6
B 12 111 13458 118.84 562 546 108.7
B 11 111 12531 110.3 562 546 108.7
B 14 111 12285 108.04 562 546 108.7
C 15 214 215271 1646.08 557 563 130.4
C 8 79 80108 609.84 557 563 130.4
C 10 223 15218 112.35 557 563 130.4
D 12 6 514116 3898.57 537 523 131.7
D 13 249 457653 3469.97 537 523 131.7
D 10 204 303477 2299.66 537 523 131.7

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