ASTROSAT CZTI

Data Quality Report

Orbit 05498

Creation date: 2024-06-27T14:55:57.254872
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/AS1A02_162T01_9000000704_05498cztM0_level2.evt modeM0/AS1A02_162T01_9000000704_05498cztM0_level2_quad_clean.evt
Size (bytes)220,812,48031,052,160
Size210.6 MB 29.6 MB
Events in quadrant A1,413,275189,260
Events in quadrant B1,810,839187,814
Events in quadrant C1,680,619184,249
Events in quadrant D1,588,052175,753

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A059992
B073031
C068531
D065231

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2839351.232828%
B2839401.408947%
C2839351.232828%
D2839351.232828%

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 4029 2840 0 0 0.00% 0.00%
B 4029 2840 1 1 0.02% 0.04%
C 4029 2840 11 11 0.27% 0.39%
D 4029 2840 8 8 0.20% 0.28%

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 12 194 3673 43.89 366 358 75.5
A 0 226 3668 43.83 366 358 75.5
A 13 6 3214 37.82 366 358 75.5
B 15 204 245904 3422.02 365 356 71.8
B 15 255 105365 1463.43 365 356 71.8
B 4 48 9811 131.77 365 356 71.8
C 9 247 156319 1906.44 347 349 81.8
C 1 16 114969 1401.01 347 349 81.8
C 1 241 50824 616.96 347 349 81.8
D 2 63 95949 1099.21 351 339 87.0
D 2 152 53443 610.53 351 339 87.0
D 2 136 40650 463.45 351 339 87.0

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