ASTROSAT CZTI

Data Quality Report

Orbit 22247

Creation date: 2024-06-27T18:38:28.924307
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/AS1T03_147T01_9000003290_22247cztM0_level2.evt modeM0/AS1T03_147T01_9000003290_22247cztM0_level2_quad_clean.evt
Size (bytes)195,289,92047,505,600
Size186.2 MB 45.3 MB
Events in quadrant A1,046,352333,352
Events in quadrant B1,080,955346,992
Events in quadrant C1,577,459320,550
Events in quadrant D2,069,608290,115

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043281
B044481
C059571
D074331

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A203010.049261%
B203020.098522%
C20301507.389163%
D203042120.738916%

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 2030 2030 0 0 0.00% 0.00%
B 2030 2030 0 0 0.00% 0.00%
C 2030 2030 96 96 4.73% 4.73%
D 2030 2030 363 363 17.88% 17.88%

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 13 254 2970 48.71 271 268 55.5
A 0 226 2299 36.61 271 268 55.5
A 3 137 2075 32.57 271 268 55.5
B 12 111 5676 103.93 275 269 52.0
B 11 111 4977 90.49 275 269 52.0
B 14 111 4711 85.38 275 269 52.0
C 10 22 493623 7785.44 266 270 63.4
C 14 238 42612 668.19 266 270 63.4
C 0 10 2263 31.45 266 270 63.4
D 1 52 1089360 18147.19 249 243 60.0
D 13 104 38256 633.38 249 243 60.0
D 2 234 6230 99.76 249 243 60.0

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