ASTROSAT CZTI

Data Quality Report

Orbit 05355

Creation date: 2024-06-27T14:54:14.947456
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_106T01_9000000678_05355cztM0_level2.evt modeM0/AS1G05_106T01_9000000678_05355cztM0_level2_quad_clean.evt
Size (bytes)451,071,36070,799,040
Size430.2 MB 67.5 MB
Events in quadrant A3,267,981430,163
Events in quadrant B3,783,129439,439
Events in quadrant C3,096,976435,604
Events in quadrant D3,091,226405,684

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137993
B0152002
C0131882
D0135552

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62001372.209677%
B62001252.016129%
C6200330.532258%
D6200550.887097%

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 7540 6200 90 90 1.19% 1.45%
B 7540 6200 72 72 0.95% 1.16%
C 7540 6200 0 0 0.00% 0.00%
D 7540 6201 35 35 0.46% 0.56%

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 50 264404 1737.34 749 734 151.8
A 15 174 120409 788.55 749 734 151.8
A 0 226 7350 43.59 749 734 151.8
B 10 16 512219 3536.79 766 753 144.6
B 4 80 135277 930.23 766 753 144.6
B 15 204 59971 409.49 766 753 144.6
C 1 16 207011 1215.38 735 741 169.7
C 14 67 20505 116.45 735 741 169.7
C 13 61 6119 31.69 735 741 169.7
D 4 95 108964 613.35 721 699 176.5
D 2 136 70264 394.11 721 699 176.5
D 12 233 47266 263.82 721 699 176.5

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