ASTROSAT CZTI

Data Quality Report

Orbit 05228

Creation date: 2024-06-27T14:53:05.778369
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_258T01_9000000666_05228cztM0_level2.evt modeM0/AS1G05_258T01_9000000666_05228cztM0_level2_quad_clean.evt
Size (bytes)966,934,080173,018,880
Size922.1 MB 165.0 MB
Events in quadrant A5,078,8381,167,910
Events in quadrant B5,371,9301,191,042
Events in quadrant C4,890,3541,150,224
Events in quadrant D13,182,600952,579

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233464
B0235953
C0228473
D0472903

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02280
B02280
C02280
D02280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A112361661.477394%
B112361341.192595%
C11236470.418298%
D11236274024.385902%

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 12696 11239 40 40 0.32% 0.36%
B 12696 11239 11 11 0.09% 0.10%
C 12696 11239 0 0 0.00% 0.00%
D 12696 11238 2299 2299 18.11% 20.46%

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 50 212324 827.04 1262 1235 255.2
A 13 14 12918 45.77 1262 1235 255.2
A 12 194 12627 44.63 1262 1235 255.2
B 4 80 289938 1201.85 1279 1247 240.2
B 4 48 55009 223.82 1279 1247 240.2
B 0 219 42456 171.56 1279 1247 240.2
C 1 16 133545 475.97 1217 1221 278.0
C 13 61 10108 31.97 1217 1221 278.0
C 14 67 4984 13.54 1217 1221 278.0
D 11 145 8673456 32881.65 1081 1044 263.7
D 2 63 201775 761.08 1081 1044 263.7
D 1 31 41346 152.81 1081 1044 263.7

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