ASTROSAT CZTI

Data Quality Report

Orbit 07480

Creation date: 2024-06-27T15:20:23.699262
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/AS1G06_087T04_9000001028_07480cztM0_level2.evt modeM0/AS1G06_087T04_9000001028_07480cztM0_level2_quad_clean.evt
Size (bytes)464,944,32066,620,160
Size443.4 MB 63.5 MB
Events in quadrant A3,223,196390,287
Events in quadrant B3,389,483397,146
Events in quadrant C3,148,414392,657
Events in quadrant D3,867,226372,432

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138783
B0142492
C0136892
D0159862

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6666580.870087%
B6666600.900090%
C6666420.630063%
D66661862.790279%

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 7796 6666 0 0 0.00% 0.00%
B 7796 6666 3 3 0.04% 0.05%
C 7796 6667 0 0 0.00% 0.00%
D 7796 6667 121 121 1.55% 1.81%

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 15 234 11906 65.81 831 813 168.6
A 0 226 7856 41.78 831 813 168.6
A 12 194 7503 39.69 831 813 168.6
B 0 214 94297 596.01 830 812 156.9
B 4 48 23883 147.09 830 812 156.9
B 4 173 17975 109.42 830 812 156.9
C 9 68 10615 52.99 801 805 185.1
C 1 16 6395 30.2 801 805 185.1
C 13 61 6182 29.05 801 805 185.1
D 1 52 406009 2068.99 798 773 195.9
D 2 152 143276 727.57 798 773 195.9
D 2 136 103246 523.19 798 773 195.9

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