ASTROSAT CZTI

Data Quality Report

Orbit 15705

Creation date: 2024-06-27T17:12:22.932605
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/AS1A04_198T01_9000002322_15705cztM0_level2.evt modeM0/AS1A04_198T01_9000002322_15705cztM0_level2_quad_clean.evt
Size (bytes)473,333,76098,510,400
Size451.4 MB 93.9 MB
Events in quadrant A4,256,281625,021
Events in quadrant B3,229,816656,230
Events in quadrant C3,229,127640,393
Events in quadrant D3,191,231621,566

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166573
B0134062
C0132972
D0134642

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63005248.317460%
B6300480.761905%
C6300721.142857%
D6300200.317460%

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 7641 6302 342 342 4.48% 5.43%
B 7641 6302 6 6 0.08% 0.10%
C 7641 6302 0 0 0.00% 0.00%
D 7641 6302 6 6 0.08% 0.10%

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 13 248 1286901 8412.34 762 748 152.9
A 9 143 43199 277.66 762 748 152.9
A 0 226 6770 39.39 762 748 152.9
B 4 173 44840 296.79 799 780 148.5
B 5 236 27196 177.94 799 780 148.5
B 4 48 20330 131.69 799 780 148.5
C 14 238 122175 656.75 791 798 184.8
C 3 233 9571 47.47 791 798 184.8
C 9 54 8894 43.8 791 798 184.8
D 1 52 114895 591.13 796 774 193.1
D 9 68 57712 294.93 796 774 193.1
D 2 234 24106 120.86 796 774 193.1

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