ASTROSAT CZTI

Data Quality Report

Orbit 24843

Creation date: 2024-06-27T19:10:31.702203
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/AS1A08_003T03_9000003632_24843cztM0_level2.evt modeM0/AS1A08_003T03_9000003632_24843cztM0_level2_quad_clean.evt
Size (bytes)206,801,28052,715,520
Size197.2 MB 50.3 MB
Events in quadrant A1,409,443353,569
Events in quadrant B1,433,901357,380
Events in quadrant C1,417,534335,627
Events in quadrant D1,791,006330,605

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061780
B062450
C061820
D072640

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A308020.064935%
B308040.129870%
C3081150.486855%
D3081110.357027%

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 3080 3080 0 0 0.00% 0.00%
B 3080 3080 0 0 0.00% 0.00%
C 3081 3081 0 0 0.00% 0.00%
D 3081 3081 8 8 0.26% 0.26%

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 4215 51.5 364 355 74.9
A 3 137 3240 38.49 364 355 74.9
A 0 226 3125 36.95 364 355 74.9
B 0 189 12666 175.12 358 350 70.3
B 12 111 8270 112.62 358 350 70.3
B 11 111 7606 103.17 358 350 70.3
C 14 238 56286 680.92 346 348 82.2
C 7 247 6259 71.95 346 348 82.2
C 8 128 4304 48.16 346 348 82.2
D 8 195 278528 3173.6 354 343 87.7
D 1 52 100745 1145.41 354 343 87.7
D 12 218 36250 409.64 354 343 87.7

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