ASTROSAT CZTI

Data Quality Report

Orbit 19542

Creation date: 2024-06-27T18:04:10.396382
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/AS1A05_142T01_9000002904_19542cztM0_level2.evt modeM0/AS1A05_142T01_9000002904_19542cztM0_level2_quad_clean.evt
Size (bytes)468,342,72069,834,240
Size446.6 MB 66.6 MB
Events in quadrant A3,288,247422,307
Events in quadrant B3,469,373427,007
Events in quadrant C3,409,448408,767
Events in quadrant D3,577,993405,814

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133951
B0139351
C0137841
D0145411

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6457971.502246%
B64581362.105915%
C64581141.765252%
D64581091.687829%

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 7587 6457 0 0 0.00% 0.00%
B 7588 6458 22 22 0.29% 0.34%
C 7588 6459 2 2 0.03% 0.03%
D 7588 6459 15 15 0.20% 0.23%

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 5 16 14769 82.14 850 832 169.7
A 13 254 8939 47.78 850 832 169.7
A 0 226 7464 39.09 850 832 169.7
B 7 220 73434 458.96 832 812 158.2
B 0 244 44067 273.37 832 812 158.2
B 3 64 32137 197.97 832 812 158.2
C 14 238 126637 679.46 797 802 185.2
C 7 247 120258 645.01 797 802 185.2
C 3 233 54219 288.43 797 802 185.2
D 1 52 349050 1743.24 824 799 199.8
D 12 225 67752 335.15 824 799 199.8
D 12 218 30313 147.74 824 799 199.8

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