ASTROSAT CZTI

Data Quality Report

Orbit 10394

Creation date: 2024-06-27T15:58:50.709447
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/AS1G07_028T01_9000001500_10394cztM0_level2.evt modeM0/AS1G07_028T01_9000001500_10394cztM0_level2_quad_clean.evt
Size (bytes)474,641,28077,880,960
Size452.7 MB 74.3 MB
Events in quadrant A3,271,462482,205
Events in quadrant B3,709,870492,833
Events in quadrant C3,171,527477,059
Events in quadrant D3,778,498451,064

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136523
B0149802
C0135812
D0152712

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65251221.869732%
B65251812.773946%
C6525911.394636%
D65251332.038314%

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 7595 6525 0 0 0.00% 0.00%
B 7595 6525 32 32 0.42% 0.49%
C 7595 6525 1 1 0.01% 0.02%
D 7595 6525 50 50 0.66% 0.77%

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 10418 55.69 841 825 172.3
A 1 162 10046 53.53 841 825 172.3
A 14 254 8302 43.41 841 825 172.3
B 4 239 255779 1588.26 841 823 160.5
B 11 51 63270 389.02 841 823 160.5
B 0 187 52723 323.31 841 823 160.5
C 14 234 15935 80.6 808 815 187.6
C 13 61 5831 26.74 808 815 187.6
C 14 67 3606 14.88 808 815 187.6
D 1 20 366626 1899.05 801 781 192.6
D 8 195 194763 1006.93 801 781 192.6
D 12 233 105352 542.81 801 781 192.6

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