ASTROSAT CZTI

Data Quality Report

Orbit 38062

Creation date: 2024-06-27T21:47:58.095578
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_044T01_9000005360_38062cztM0_level2.fits modeM0/AS1A11_044T01_9000005360_38062cztM0_level2_quad_clean.evt
Size (bytes)225,020,16029,439,360
Size214.6 MB 28.1 MB
Events in quadrant A1,124,408215,433
Events in quadrant B1,254,471220,461
Events in quadrant C1,582,683223,785
Events in quadrant D4,211,12686,912

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A045390
B050430
C060320
D0138460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1990140.703518%
B1990492.462312%
C1990261.306533%
D1990125463.015075%

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 1990 1990 9 9 0.45% 0.45%
B 1990 1990 19 19 0.95% 0.95%
C 1990 1990 21 21 1.06% 1.06%
D 1990 1990 1172 1172 58.89% 58.89%

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 120525 2614.51 216 211 46.0
A 10 83 107595 2333.54 216 211 46.0
A 15 222 18897 406.06 216 211 46.0
B 4 171 191751 4476.15 213 208 42.8
B 0 229 87993 2051.44 213 208 42.8
B 5 172 50932 1185.36 213 208 42.8
C 3 233 615923 12319.31 208 209 50.0
C 15 214 82116 1638.81 208 209 50.0
C 1 23 72443 1445.27 208 209 50.0
D 12 227 3416181 95639.44 136 131 35.7
D 12 233 118364 3310.18 136 131 35.7
D 10 199 37526 1046.95 136 131 35.7

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