ASTROSAT CZTI

Data Quality Report

Orbit 33545

Creation date: 2024-06-27T20:49:59.728473
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/AS1A11_060T01_9000004808_33545cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33545cztM0_level2_quad_clean.evt
Size (bytes)558,426,24084,303,360
Size532.6 MB 80.4 MB
Events in quadrant A2,987,853539,621
Events in quadrant B4,309,576528,059
Events in quadrant C3,545,901536,035
Events in quadrant D5,638,474505,744

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131283
B0168792
C0142782
D0210762

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6350160.251969%
B63503635.716535%
C6350891.401575%
D63501552.440945%

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 8946 6352 0 0 0.00% 0.00%
B 8946 6351 291 291 3.25% 4.58%
C 8946 6352 64 64 0.72% 1.01%
D 8946 6352 121 121 1.35% 1.90%

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 15 169 97023 641.43 745 730 150.1
A 13 254 10739 66.67 745 730 150.1
A 3 137 7565 45.53 745 730 150.1
B 5 172 867838 6120.76 728 708 141.7
B 4 170 267572 1883.7 728 708 141.7
B 4 251 107124 751.15 728 708 141.7
C 0 10 301784 1773.99 725 727 169.7
C 15 214 273794 1609.06 725 727 169.7
C 14 254 56333 327.66 725 727 169.7
D 8 195 1919004 10854.78 722 700 176.7
D 2 250 421215 2379.5 722 700 176.7
D 2 249 149110 839.78 722 700 176.7

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