ASTROSAT CZTI

Data Quality Report

Orbit 43280

Creation date: 2024-06-27T22:50:05.826897
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/AS1A06_006T01_9000005860_43280cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43280cztM0_level2_quad_clean.evt
Size (bytes)706,296,960186,240,960
Size673.6 MB 177.6 MB
Events in quadrant A7,006,6181,222,733
Events in quadrant B5,247,3641,290,898
Events in quadrant C5,897,2331,230,659
Events in quadrant D7,080,9031,080,590

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02420
B02420
C02420
D02420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280903
B0239743
C0251663
D0296353

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A117603102.636054%
B11760410.348639%
C11759940.799388%
D117596065.153499%

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 14384 11762 225 225 1.56% 1.91%
B 14384 11762 21 21 0.15% 0.18%
C 14383 11761 80 80 0.56% 0.68%
D 14383 11761 559 559 3.89% 4.75%

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 1141795 4401.82 1256 1229 259.1
A 15 237 925145 3565.69 1256 1229 259.1
A 13 248 54715 206.42 1256 1229 259.1
B 5 172 98287 392.11 1267 1232 247.5
B 0 189 95289 379.99 1267 1232 247.5
B 12 111 32017 124.37 1267 1232 247.5
C 15 214 483852 1654.92 1246 1252 291.6
C 14 254 311769 1064.82 1246 1252 291.6
C 2 16 151153 514.04 1246 1252 291.6
D 12 233 1311186 4412.92 1210 1174 296.9
D 1 52 389536 1308.24 1210 1174 296.9
D 12 6 312160 1047.59 1210 1174 296.9

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