ASTROSAT CZTI

Data Quality Report

Orbit 13807

Creation date: 2024-06-27T16:46:21.884669
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_199T01_9000002040_13807cztM0_level2.evt modeM0/AS1A04_199T01_9000002040_13807cztM0_level2_quad_clean.evt
Size (bytes)447,554,88086,745,600
Size426.8 MB 82.7 MB
Events in quadrant A3,077,263561,732
Events in quadrant B3,534,177546,636
Events in quadrant C3,063,828557,311
Events in quadrant D3,459,205529,903

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130153
B0143422
C0128302
D0143292

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6177280.453294%
B61772564.144407%
C6177190.307593%
D6177280.453294%

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 7453 6179 0 0 0.00% 0.00%
B 7453 6179 105 105 1.41% 1.70%
C 7453 6179 0 0 0.00% 0.00%
D 7453 6179 9 9 0.12% 0.15%

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 15 32633 200.4 780 766 159.0
A 15 69 20013 121.04 780 766 159.0
A 1 162 17653 106.2 780 766 159.0
B 3 64 320214 2228.58 762 745 143.4
B 10 252 112752 781.35 762 745 143.4
B 4 173 45610 312.97 762 745 143.4
C 3 233 99532 557.13 759 763 177.3
C 14 234 6072 29.94 759 763 177.3
C 13 61 5554 27.02 759 763 177.3
D 1 52 173878 912.75 744 727 189.7
D 8 195 146402 767.91 744 727 189.7
D 5 222 130230 682.66 744 727 189.7

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