ASTROSAT CZTI

Data Quality Report

Orbit 42913

Creation date: 2024-06-27T22:45:44.915305
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/AS1T05_143T01_9000005830_42913cztM0_level2.fits modeM0/AS1T05_143T01_9000005830_42913cztM0_level2_quad_clean.evt
Size (bytes)369,077,76089,789,760
Size352.0 MB 85.6 MB
Events in quadrant A3,585,349594,262
Events in quadrant B2,840,372612,275
Events in quadrant C2,711,186592,744
Events in quadrant D4,084,616524,240

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143112
B0126222
C0118642
D0164972

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56551763.112290%
B56551322.334218%
C5655150.265252%
D56553977.020336%

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 7148 5656 150 150 2.10% 2.65%
B 7148 5656 110 110 1.54% 1.94%
C 7148 5656 9 9 0.13% 0.16%
D 7148 5656 421 421 5.89% 7.44%

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 15 237 649012 5289.34 589 575 122.6
A 10 83 583863 4757.91 589 575 122.6
A 2 79 57225 462.1 589 575 122.6
B 0 229 318645 2727.43 594 576 116.6
B 4 81 75903 645.93 594 576 116.6
B 5 172 64186 545.45 594 576 116.6
C 15 214 230942 1686.96 583 587 136.6
C 8 79 148639 1084.23 583 587 136.6
C 12 2 42078 303.85 583 587 136.6
D 12 6 688195 4963.92 567 550 138.5
D 1 47 551392 3976.38 567 550 138.5
D 2 249 230040 1656.63 567 550 138.5

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