ASTROSAT CZTI

Data Quality Report

Orbit 05451

Creation date: 2024-06-27T14:55:21.988954
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_204T01_9000000688_05451cztM0_level2.evt modeM0/AS1G05_204T01_9000000688_05451cztM0_level2_quad_clean.evt
Size (bytes)569,315,520115,683,840
Size542.9 MB 110.3 MB
Events in quadrant A3,530,263766,688
Events in quadrant B3,680,727766,246
Events in quadrant C3,473,560766,457
Events in quadrant D6,049,182683,108

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016026537
B016359568
C016221533
D023782614

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01586
B01582
C01588
D01584

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74841131.509888%
B7469921.231758%
C7485580.774883%
D747984111.244819%

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 9257 7699 10 10 0.11% 0.13%
B 9257 7684 14 14 0.15% 0.18%
C 9257 7699 5 5 0.05% 0.06%
D 9257 7691 670 670 7.24% 8.71%

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 0 247 103860 585.49 854 831 176.0
A 0 50 65267 366.17 854 831 176.0
A 15 174 41670 232.08 854 831 176.0
B 15 204 146374 877.82 860 837 165.8
B 4 48 108387 648.7 860 837 165.8
B 11 51 43435 256.93 860 837 165.8
C 9 247 211167 1097.01 827 830 191.7
C 9 221 11328 54.75 827 830 191.7
C 12 4 10952 52.79 827 830 191.7
D 2 33 2850728 14996.31 774 747 190.0
D 2 152 72094 375.42 774 747 190.0
D 12 233 41541 214.65 774 747 190.0

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