ASTROSAT CZTI

Data Quality Report

Orbit 03082

Creation date: 2024-06-27T14:24:24.519423
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_237T03_9000000426_03082cztM0_level2.evt modeM0/AS1G05_237T03_9000000426_03082cztM0_level2_quad_clean.evt
Size (bytes)467,213,76079,692,480
Size445.6 MB 76.0 MB
Events in quadrant A3,970,181502,592
Events in quadrant B3,637,252509,753
Events in quadrant C2,937,948504,288
Events in quadrant D3,198,064478,410

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157833
B0147422
C0126662
D0136032

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5987661.102389%
B59871091.820611%
C5987220.367463%
D59881041.736807%

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 7287 5988 13 13 0.18% 0.22%
B 7287 5988 84 84 1.15% 1.40%
C 7287 5988 11 11 0.15% 0.18%
D 7288 5989 69 69 0.95% 1.15%

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 8 15 710766 4890.71 718 707 145.2
A 0 50 337896 2322.47 718 707 145.2
A 12 247 44245 299.88 718 707 145.2
B 2 249 470426 3446.48 722 710 136.3
B 15 204 201844 1475.79 722 710 136.3
B 0 219 67969 493.5 722 710 136.3
C 0 219 91407 569.69 688 695 159.2
C 6 80 34936 215.04 688 695 159.2
C 5 250 27297 167.07 688 695 159.2
D 7 6 368344 2024.32 680 668 181.6
D 10 213 76089 415.25 680 668 181.6
D 10 172 27811 149.44 680 668 181.6

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