ASTROSAT CZTI

Data Quality Report

Orbit 29126

Creation date: 2024-06-27T20:00:34.818909
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/AS1A10_099T01_9000004184_29126cztM0_level2.evt modeM0/AS1A10_099T01_9000004184_29126cztM0_level2_quad_clean.evt
Size (bytes)500,512,320103,939,200
Size477.3 MB 99.1 MB
Events in quadrant A3,302,170686,282
Events in quadrant B3,391,576703,150
Events in quadrant C3,530,946662,873
Events in quadrant D4,483,315633,152

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140182
B0142142
C0146272
D0177242

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6635560.844009%
B6635731.100226%
C66351001.507159%
D66352503.767898%

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 6636 5 5 0.07% 0.08%
B 7595 6636 0 0 0.00% 0.00%
C 7595 6636 1 1 0.01% 0.02%
D 7595 6636 222 222 2.92% 3.35%

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 15 174 27632 158.43 847 832 169.2
A 13 254 10973 59.95 847 832 169.2
A 13 6 8680 46.39 847 832 169.2
B 10 245 20397 120.83 847 826 162.0
B 12 111 20169 119.42 847 826 162.0
B 11 111 17880 105.29 847 826 162.0
C 3 233 196181 1021.68 813 821 191.2
C 14 238 130337 677.33 813 821 191.2
C 2 16 20456 102.68 813 821 191.2
D 8 195 793178 4139.19 799 779 191.4
D 1 52 573192 2990.07 799 779 191.4
D 13 104 32229 164.28 799 779 191.4

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