ASTROSAT CZTI

Data Quality Report

Orbit 03208

Creation date: 2024-06-27T14:25:51.278312
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/AS1G05_221T01_9000000438_03208cztM0_level2.evt modeM0/AS1G05_221T01_9000000438_03208cztM0_level2_quad_clean.evt
Size (bytes)1,385,092,800138,631,680
Size1.3 GB 132.2 MB
Events in quadrant A5,316,636921,065
Events in quadrant B5,726,296916,243
Events in quadrant C23,821,108641,688
Events in quadrant D6,255,777868,374

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02500
B02500
C02500
D02500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248113
B0253312
C0792552
D0277872

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12273280.228143%
B12273400.325919%
C12273710357.875010%
D122731461.189603%

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 14003 12274 3 3 0.02% 0.02%
B 14003 12275 4 4 0.03% 0.03%
C 14002 12272 7030 7030 50.21% 57.28%
D 14003 12275 114 114 0.81% 0.93%

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 0 118 23290 78.96 1361 1328 278.1
A 8 15 16630 55.01 1361 1328 278.1
A 0 226 16294 53.81 1361 1328 278.1
B 15 204 234537 872.79 1389 1353 267.2
B 2 249 31864 114.2 1389 1353 267.2
B 15 85 28356 101.07 1389 1353 267.2
C 12 206 19469290 81560.66 1028 1033 238.7
C 14 223 123961 515.0 1028 1033 238.7
C 1 192 88820 367.78 1028 1033 238.7
D 12 233 349805 1111.35 1295 1258 313.6
D 13 120 289168 918.01 1295 1258 313.6
D 13 223 260152 825.49 1295 1258 313.6

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