ASTROSAT CZTI

Data Quality Report

Orbit 42184

Creation date: 2024-06-27T22:37:51.171371
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/AS1A11_032T04_9000005766_42184cztM0_level2.fits modeM0/AS1A11_032T04_9000005766_42184cztM0_level2_quad_clean.evt
Size (bytes)87,897,60025,940,160
Size83.8 MB 24.7 MB
Events in quadrant A862,189176,327
Events in quadrant B717,938179,281
Events in quadrant C671,463171,155
Events in quadrant D890,060154,405

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034551
B030631
C028361
D035901

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1401140.999286%
B1401181.284797%
C140110.071378%
D1401483.426124%

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 1401 1401 12 12 0.86% 0.86%
B 1401 1401 16 16 1.14% 1.14%
C 1401 1401 0 0 0.00% 0.00%
D 1401 1401 51 51 3.64% 3.64%

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 201589 5978.87 157 154 33.7
A 15 223 39795 1176.6 157 154 33.7
A 13 248 7462 216.91 157 154 33.7
B 3 112 65400 2058.42 158 154 31.7
B 0 229 22649 709.68 158 154 31.7
B 15 35 6350 195.47 158 154 31.7
C 15 214 61112 1610.15 155 157 37.9
C 0 207 2336 57.56 155 157 37.9
C 13 61 1046 23.48 155 157 37.9
D 1 47 133533 3440.38 152 148 38.8
D 12 218 39996 1027.79 152 148 38.8
D 12 233 39945 1026.48 152 148 38.8

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