ASTROSAT CZTI

Data Quality Report

Orbit 33201

Creation date: 2024-06-27T20:46:01.492562
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/AS1A10_067T01_9000004770_33201cztM0_level2.evt modeM0/AS1A10_067T01_9000004770_33201cztM0_level2_quad_clean.evt
Size (bytes)501,799,68069,600,960
Size478.6 MB 66.4 MB
Events in quadrant A2,593,091445,152
Events in quadrant B3,950,175437,018
Events in quadrant C2,898,193433,262
Events in quadrant D5,375,377399,585

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112743
B0153772
C0122602
D0198232

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A560860.106990%
B56083666.526391%
C5608761.355207%
D56083566.348074%

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 7250 5609 0 0 0.00% 0.00%
B 7250 5609 239 239 3.30% 4.26%
C 7250 5609 66 66 0.91% 1.18%
D 7250 5609 306 306 4.22% 5.46%

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 13 254 9202 63.92 668 655 133.7
A 13 6 7330 49.92 668 655 133.7
A 3 137 6217 41.59 668 655 133.7
B 5 172 1021334 8302.83 643 628 122.9
B 0 197 203909 1653.57 643 628 122.9
B 4 170 34077 272.09 643 628 122.9
C 0 10 225457 1517.6 638 642 148.1
C 9 187 50032 333.4 638 642 148.1
C 1 23 49842 332.12 638 642 148.1
D 8 195 1339055 8517.79 633 613 157.1
D 2 250 1109717 7058.29 633 613 157.1
D 13 249 143882 911.76 633 613 157.1

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