ASTROSAT CZTI

Data Quality Report

Orbit 07790

Creation date: 2024-06-27T15:24:03.168913
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/AS1A02_132T01_9000001072_07790cztM0_level2.evt modeM0/AS1A02_132T01_9000001072_07790cztM0_level2_quad_clean.evt
Size (bytes)497,975,04089,784,000
Size474.9 MB 85.6 MB
Events in quadrant A3,341,499555,069
Events in quadrant B3,532,453569,769
Events in quadrant C3,319,147565,465
Events in quadrant D4,398,101526,276

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148062
B0150281
C0148221
D0177231

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72091852.566237%
B72091912.649466%
C72091361.886531%
D72093014.175336%

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 7654 7209 0 0 0.00% 0.00%
B 7654 7209 1 1 0.01% 0.01%
C 7654 7209 0 0 0.00% 0.00%
D 7654 7209 106 106 1.38% 1.47%

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 0 226 8170 40.95 867 846 178.8
A 12 194 7588 37.7 867 846 178.8
A 15 174 4930 22.84 867 846 178.8
B 0 219 66643 393.75 868 847 167.1
B 4 239 29115 169.17 868 847 167.1
B 0 214 18411 105.11 868 847 167.1
C 13 61 6470 28.33 849 851 198.4
C 1 16 5868 25.29 849 851 198.4
C 10 22 3058 11.12 849 851 198.4
D 1 52 457908 2203.56 840 813 207.4
D 13 104 320086 1539.15 840 813 207.4
D 2 152 277087 1331.86 840 813 207.4

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