ASTROSAT CZTI

Data Quality Report

Orbit 43134

Creation date: 2024-06-27T22:48:28.393701
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/AS1A09_006T07_9000005852_43134cztM0_level2.fits modeM0/AS1A09_006T07_9000005852_43134cztM0_level2_quad_clean.evt
Size (bytes)446,561,28087,471,360
Size425.9 MB 83.4 MB
Events in quadrant A6,489,658457,753
Events in quadrant B2,822,176636,229
Events in quadrant C2,825,555603,720
Events in quadrant D3,943,652546,922

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232282
B0124382
C0121602
D0159192

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5773155226.883769%
B5773520.900745%
C5773250.433050%
D57731893.273861%

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 7115 5773 1003 1003 14.10% 17.37%
B 7116 5774 27 27 0.38% 0.47%
C 7116 5774 27 27 0.38% 0.47%
D 7116 5774 189 189 2.66% 3.27%

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 3875175 37997.97 493 482 102.0
A 10 83 485932 4760.66 493 482 102.0
A 15 237 120953 1181.42 493 482 102.0
B 0 229 154855 1284.74 619 601 120.1
B 5 255 133859 1109.87 619 601 120.1
B 15 54 53965 444.45 619 601 120.1
C 15 214 241536 1698.52 605 607 141.8
C 0 207 162163 1138.95 605 607 141.8
C 3 233 45567 316.96 605 607 141.8
D 1 52 1392869 9270.59 599 580 150.2
D 12 218 155311 1030.28 599 580 150.2
D 2 234 28359 184.97 599 580 150.2

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