ASTROSAT CZTI

Data Quality Report

Orbit 22209

Creation date: 2024-06-27T18:38:09.153238
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_054T01_9000003286_22209cztM0_level2.evt modeM0/AS1A07_054T01_9000003286_22209cztM0_level2_quad_clean.evt
Size (bytes)460,932,480131,869,440
Size439.6 MB 125.8 MB
Events in quadrant A3,240,223893,179
Events in quadrant B3,385,171901,788
Events in quadrant C3,288,192858,150
Events in quadrant D3,562,553846,116

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144071
B0146031
C0144801
D0156051

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7109370.520467%
B7110440.618847%
C7110741.040788%
D7110881.237693%

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 7419 7110 0 0 0.00% 0.00%
B 7420 7111 2 2 0.03% 0.03%
C 7420 7111 0 0 0.00% 0.00%
D 7420 7111 58 58 0.78% 0.82%

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 12453 69.23 839 821 168.0
A 3 137 7216 38.06 839 821 168.0
A 0 226 7143 37.63 839 821 168.0
B 0 245 47393 291.81 833 811 159.6
B 0 190 27420 166.69 833 811 159.6
B 0 219 26752 162.51 833 811 159.6
C 14 238 125383 665.5 799 802 187.2
C 10 91 31430 163.61 799 802 187.2
C 10 22 15793 80.08 799 802 187.2
D 7 38 188137 943.84 814 789 198.5
D 2 136 107451 537.35 814 789 198.5
D 1 52 77082 384.35 814 789 198.5

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