ASTROSAT CZTI

Data Quality Report

Orbit 11632

Creation date: 2024-06-27T16:16:09.750381
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/AS1A04_049T01_9000001710_11632cztM0_level2.evt modeM0/AS1A04_049T01_9000001710_11632cztM0_level2_quad_clean.evt
Size (bytes)718,361,28089,343,360
Size685.1 MB 85.2 MB
Events in quadrant A6,417,749540,548
Events in quadrant B4,617,385565,444
Events in quadrant C3,281,543583,277
Events in quadrant D6,950,234512,614

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240293
B0187202
C0146742
D0257122

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A722382411.408002%
B72233254.499515%
C7223150.207670%
D7223156421.653053%

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 9069 7226 375 375 4.13% 5.19%
B 9069 7226 174 174 1.92% 2.41%
C 9069 7226 0 0 0.00% 0.00%
D 9068 7225 691 691 7.62% 9.56%

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 5 2848966 17088.0 821 801 166.7
A 1 162 125771 749.78 821 801 166.7
A 9 143 70012 415.24 821 801 166.7
B 4 239 1020102 6291.94 847 825 162.0
B 3 64 83616 511.06 847 825 162.0
B 15 204 69376 423.16 847 825 162.0
C 13 61 6075 26.35 841 843 198.5
C 3 202 2162 6.64 841 843 198.5
C -1 -1 -1 -1.0 841 843 198.5
D 13 152 3373013 18987.43 733 710 177.6
D 1 52 370468 2081.89 733 710 177.6
D 10 253 94468 527.9 733 710 177.6

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