ASTROSAT CZTI

Data Quality Report

Orbit 07863

Creation date: 2024-06-27T15:24:57.452579
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/AS1G06_077T02_9000001076_07863cztM0_level2.evt modeM0/AS1G06_077T02_9000001076_07863cztM0_level2_quad_clean.evt
Size (bytes)246,035,52049,063,680
Size234.6 MB 46.8 MB
Events in quadrant A1,819,475311,602
Events in quadrant B1,883,504322,609
Events in quadrant C1,944,990320,813
Events in quadrant D1,587,868306,820

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07896354
B07958318
C08130305
D07117286

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0664
B0664
C0664
D0660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A31282528.056266%
B31432828.972319%
C31452146.804452%
D31391825.798025%

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 4165 3159 4 4 0.10% 0.13%
B 4170 3162 31 31 0.74% 0.98%
C 4181 3177 0 0 0.00% 0.00%
D 4182 3172 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 15 234 262855 3184.38 398 388 82.4
A 15 174 16430 194.63 398 388 82.4
A 0 226 3767 41.0 398 388 82.4
B 4 239 98510 1222.84 405 394 80.2
B 0 219 62307 771.64 405 394 80.2
B 4 173 49976 617.95 405 394 80.2
C 1 16 378641 4038.96 397 398 93.6
C 8 229 9712 99.46 397 398 93.6
C 12 4 3353 31.55 397 398 93.6
D 2 152 46773 474.01 395 383 97.9
D 1 52 19902 199.44 395 383 97.9
D 2 234 11632 114.94 395 383 97.9

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