ASTROSAT CZTI

Data Quality Report

Orbit 48282

Creation date: 2024-09-06T10:03:06.189672
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/AS1A13_029T01_9000006422_48282cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48282cztM0_level2_quad_clean.evt
Size (bytes)113,463,36023,771,520
Size108.2 MB 22.7 MB
Events in quadrant A1,533,772137,797
Events in quadrant B852,077168,417
Events in quadrant C783,442153,156
Events in quadrant D905,769144,239

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149349434
B084364834
C084885073
D092885543

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08046
B07844
C08751
D08145

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1410694.893617%
B1644171.034063%
C158870.440806%
D160710.062228%

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 3873 1716 0 0 0.00% 0.00%
B 3883 1976 1 1 0.03% 0.05%
C 4008 1930 4 4 0.10% 0.21%
D 4276 1921 0 0 0.00% 0.00%

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 10 83 866382 22456.6 171 166 38.6
A 13 254 3070 75.27 171 166 38.6
A 3 137 2157 51.6 171 166 38.6
B 0 198 15330 359.33 200 194 42.1
B 5 255 10753 250.67 200 194 42.1
B 5 173 9678 225.15 200 194 42.1
C 12 249 20030 422.95 188 187 46.9
C 0 207 13465 283.02 188 187 46.9
C 14 254 8246 171.78 188 187 46.9
D 12 233 45394 896.07 190 183 50.5
D 7 67 38829 765.95 190 183 50.5
D 2 165 23420 460.55 190 183 50.5

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