ASTROSAT CZTI

Data Quality Report

Orbit 11432

Creation date: 2024-06-27T16:13:01.485564
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_010T01_9000001672_11432cztM0_level2.evt modeM0/AS1G08_010T01_9000001672_11432cztM0_level2_quad_clean.evt
Size (bytes)510,644,16088,467,840
Size487.0 MB 84.4 MB
Events in quadrant A3,347,478571,139
Events in quadrant B5,129,802543,938
Events in quadrant C3,154,922564,459
Events in quadrant D3,388,613543,032

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142303
B0196402
C0138632
D0145312

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65461151.756798%
B65465718.722884%
C6546771.176291%
D65461221.863734%

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 8771 6548 1 1 0.01% 0.02%
B 8771 6548 340 340 3.88% 5.19%
C 8771 6548 0 0 0.00% 0.00%
D 8771 6548 26 26 0.30% 0.40%

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 1 162 28213 159.16 846 828 172.1
A 8 5 21524 120.28 846 828 172.1
A 1 178 14856 81.53 846 828 172.1
B 4 239 1148769 7412.17 820 801 154.9
B 3 64 411185 2649.76 820 801 154.9
B 3 189 278155 1790.81 820 801 154.9
C 13 61 5848 26.93 808 812 187.0
C 12 4 2919 11.27 808 812 187.0
C 3 202 2032 6.52 808 812 187.0
D 10 253 105320 534.07 811 789 195.7
D 2 120 35796 178.86 811 789 195.7
D 8 195 35079 175.2 811 789 195.7

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