ASTROSAT CZTI

Data Quality Report

Orbit 14038

Creation date: 2024-06-27T16:49:30.980130
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/AS1A04_162T01_9000002074_14038cztM0_level2.evt modeM0/AS1A04_162T01_9000002074_14038cztM0_level2_quad_clean.evt
Size (bytes)132,978,24038,001,600
Size126.8 MB 36.2 MB
Events in quadrant A902,759263,716
Events in quadrant B982,170268,736
Events in quadrant C895,786257,759
Events in quadrant D1,136,782243,921

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037122
B040521
C036831
D044281

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1576110.697970%
B157690.571066%
C157620.126904%
D1576633.997462%

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 1577 1577 0 0 0.00% 0.00%
B 1577 1577 1 1 0.06% 0.06%
C 1577 1577 1 1 0.06% 0.06%
D 1577 1577 50 50 3.17% 3.17%

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 1 162 4118 82.35 233 229 47.2
A 0 226 2108 39.79 233 229 47.2
A 12 194 1776 32.76 233 229 47.2
B 0 189 43670 983.71 228 224 44.2
B 3 209 12848 285.83 228 224 44.2
B 0 214 11184 248.16 228 224 44.2
C 3 233 37745 737.98 218 219 50.8
C 0 207 5521 104.27 218 219 50.8
C 13 61 1592 27.0 218 219 50.8
D 10 157 193772 3628.56 217 212 53.3
D 1 52 86113 1610.34 217 212 53.3
D 13 122 7711 140.58 217 212 53.3

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