ASTROSAT CZTI

Data Quality Report

Orbit 11130

Creation date: 2024-06-27T16:08:41.185098
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/AS1G08_071T02_9000001620_11130cztM0_level2.evt modeM0/AS1G08_071T02_9000001620_11130cztM0_level2_quad_clean.evt
Size (bytes)572,610,24080,553,600
Size546.1 MB 76.8 MB
Events in quadrant A4,553,528504,683
Events in quadrant B4,189,146519,011
Events in quadrant C3,170,155512,184
Events in quadrant D5,004,945466,134

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176773
B0164822
C0133282
D0190782

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62572564.091418%
B62572514.011507%
C6257731.166693%
D62574777.623462%

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 8877 6259 159 159 1.79% 2.54%
B 8877 6259 144 144 1.62% 2.30%
C 8877 6259 48 48 0.54% 0.77%
D 8876 6258 377 377 4.25% 6.02%

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 5 1421142 8902.03 790 772 159.6
A 8 15 61578 381.1 790 772 159.6
A 11 29 27750 169.08 790 772 159.6
B 4 239 623990 4166.69 799 781 149.6
B 10 16 225271 1500.91 799 781 149.6
B 15 204 84012 556.47 799 781 149.6
C 9 54 161185 897.9 770 774 178.7
C 13 61 5670 27.41 770 774 178.7
C 12 4 5164 24.57 770 774 178.7
D 10 253 967120 5428.39 736 717 178.0
D 1 52 532947 2989.59 736 717 178.0
D 8 195 260091 1456.93 736 717 178.0

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