ASTROSAT CZTI

Data Quality Report

Orbit 06588

Creation date: 2024-06-27T15:09:07.171229
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/AS1G06_169T01_9000000886_06588cztM0_level2.evt modeM0/AS1G06_169T01_9000000886_06588cztM0_level2_quad_clean.evt
Size (bytes)460,261,44074,764,800
Size438.9 MB 71.3 MB
Events in quadrant A2,807,742471,722
Events in quadrant B3,291,070477,031
Events in quadrant C2,752,470469,400
Events in quadrant D4,674,165420,691

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124592
B0137771
C0125151
D0180371

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6082981.611312%
B60821572.581388%
C6082621.019402%
D608262710.309109%

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 6877 6084 0 0 0.00% 0.00%
B 6877 6084 35 35 0.51% 0.58%
C 6877 6084 2 2 0.03% 0.03%
D 6876 6083 534 534 7.77% 8.78%

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 15 12571 80.42 719 703 147.6
A 3 1 8533 53.06 719 703 147.6
A 14 111 7172 43.84 719 703 147.6
B 0 219 95499 686.19 717 698 138.2
B 4 80 92392 663.7 717 698 138.2
B 4 48 90116 647.23 717 698 138.2
C 9 16 46213 282.04 690 691 161.4
C 1 16 9054 51.81 690 691 161.4
C 9 54 6168 33.93 690 691 161.4
D 2 33 1759430 10454.14 674 652 168.2
D 2 152 107948 637.77 674 652 168.2
D 2 136 84967 501.17 674 652 168.2

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