ASTROSAT CZTI

Data Quality Report

Orbit 20339

Creation date: 2024-06-27T18:14:08.959967
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/AS1A05_163T01_9000003010_20339cztM0_level2.evt modeM0/AS1A05_163T01_9000003010_20339cztM0_level2_quad_clean.evt
Size (bytes)456,966,72077,330,880
Size435.8 MB 73.7 MB
Events in quadrant A3,226,991473,199
Events in quadrant B3,281,024481,323
Events in quadrant C3,266,101463,776
Events in quadrant D3,613,312459,632

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136902
B0137372
C0137352
D0151622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6653671.007064%
B6653921.382835%
C66521071.608539%
D6652580.871918%

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 7573 6654 0 0 0.00% 0.00%
B 7573 6654 0 0 0.00% 0.00%
C 7572 6653 0 0 0.00% 0.00%
D 7572 6653 24 24 0.32% 0.36%

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 7586 40.39 838 822 167.5
A 0 226 7484 39.78 838 822 167.5
A 3 137 6931 36.47 838 822 167.5
B 12 111 19985 118.7 835 813 161.5
B 11 111 17543 103.58 835 813 161.5
B 14 111 16400 96.5 835 813 161.5
C 14 238 124456 658.78 803 812 187.7
C 7 220 8263 39.7 803 812 187.7
C 13 61 5519 25.08 803 812 187.7
D 1 52 399056 2008.17 813 790 198.3
D 1 20 61397 305.6 813 790 198.3
D 2 16 56861 282.72 813 790 198.3

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