ASTROSAT CZTI

Data Quality Report

Orbit 22033

Creation date: 2024-06-27T18:35:36.929894
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/AS1A07_134T01_9000003256_22033cztM0_level2.evt modeM0/AS1A07_134T01_9000003256_22033cztM0_level2_quad_clean.evt
Size (bytes)596,623,68090,915,840
Size569.0 MB 86.7 MB
Events in quadrant A3,212,415592,879
Events in quadrant B3,489,309595,181
Events in quadrant C3,200,628569,883
Events in quadrant D7,717,722532,927

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137911
B0145551
C0138332
D0275191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6623961.449494%
B66241422.143720%
C66231332.008153%
D662381712.335799%

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 7408 6623 0 0 0.00% 0.00%
B 7409 6624 25 25 0.34% 0.38%
C 7408 6623 0 0 0.00% 0.00%
D 7408 6623 951 951 12.84% 14.36%

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 13 254 11084 61.45 832 816 167.1
A 0 226 7035 37.22 832 816 167.1
A 3 137 7029 37.18 832 816 167.1
B 3 64 167535 1044.68 824 805 159.6
B 0 230 36442 223.29 824 805 159.6
B 0 190 34723 212.52 824 805 159.6
C 14 238 123985 662.19 789 793 186.0
C 13 61 5508 25.34 789 793 186.0
C 8 208 2494 9.14 789 793 186.0
D 1 52 4459489 23623.56 780 760 188.7
D 12 233 125476 660.78 780 760 188.7
D 11 176 66417 347.87 780 760 188.7

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