ASTROSAT CZTI

Data Quality Report

Orbit 16132

Creation date: 2024-06-27T17:18:25.756177
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/AS1C03_015T04_9000002382_16132cztM0_level2.evt modeM0/AS1C03_015T04_9000002382_16132cztM0_level2_quad_clean.evt
Size (bytes)22,556,1604,708,800
Size21.5 MB 4.5 MB
Events in quadrant A152,54029,989
Events in quadrant B220,67930,246
Events in quadrant C132,80628,675
Events in quadrant D157,51728,334

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06000
B08140
C05370
D06160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A23183.463203%
B231219.090909%
C23131.298701%
D23141.731602%

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 231 231 0 0 0.00% 0.00%
B 231 231 2 2 0.87% 0.87%
C 231 231 0 0 0.00% 0.00%
D 231 231 1 1 0.43% 0.43%

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 15 174 26245 2921.77 32 31 9.0
A 0 226 310 31.1 32 31 9.0
A 12 194 237 22.96 32 31 9.0
B 5 65 69943 8157.12 32 31 8.6
B 4 216 9377 1090.46 32 31 8.6
B 15 35 6636 770.65 32 31 8.6
C 14 238 4580 478.98 31 31 9.5
C 3 9 1360 139.93 31 31 9.5
C 3 233 585 58.33 31 31 9.5
D 1 52 20024 2039.18 32 31 9.8
D 7 38 12127 1233.73 32 31 9.8
D 2 120 1968 197.56 32 31 9.8

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