ASTROSAT CZTI

Data Quality Report

Orbit 31430

Creation date: 2024-06-27T20:28:23.528816
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/AS1A10_094T33_9000004572_31430cztM0_level2.evt modeM0/AS1A10_094T33_9000004572_31430cztM0_level2_quad_clean.evt
Size (bytes)313,021,44061,767,360
Size298.5 MB 58.9 MB
Events in quadrant A1,671,261424,261
Events in quadrant B3,907,965375,740
Events in quadrant C1,723,934421,749
Events in quadrant D1,954,493417,244

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069811
B0137841
C070951
D077991

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A32432527.770583%
B3243112334.628430%
C32433009.250694%
D32431885.797101%

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 3273 3244 0 0 0.00% 0.00%
B 3273 3243 288 288 8.80% 8.88%
C 3273 3244 0 0 0.00% 0.00%
D 3273 3244 8 8 0.24% 0.25%

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 12 16 22138 249.32 426 414 87.1
A 12 194 6624 71.27 426 414 87.1
A 13 254 5963 63.69 426 414 87.1
B 12 1 1246187 16889.57 373 361 73.8
B 6 159 819455 11104.4 373 361 73.8
B 12 2 224400 3037.28 373 361 73.8
C 14 238 79986 826.68 411 411 96.3
C 14 254 22037 224.67 411 411 96.3
C 2 114 7679 75.51 411 411 96.3
D 8 195 261787 2559.35 425 411 102.1
D 12 218 24049 231.46 425 411 102.1
D 5 233 24017 231.15 425 411 102.1

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