ASTROSAT CZTI

Data Quality Report

Orbit 16339

Creation date: 2024-06-27T17:21:09.665015
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_101T01_9000002412_16339cztM0_level2.evt modeM0/AS1A05_101T01_9000002412_16339cztM0_level2_quad_clean.evt
Size (bytes)465,647,04091,676,160
Size444.1 MB 87.4 MB
Events in quadrant A3,367,099575,785
Events in quadrant B3,986,654590,328
Events in quadrant C3,267,849587,292
Events in quadrant D3,038,705569,357

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142663
B0160182
C0135952
D0133922

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6502931.430329%
B65021942.983697%
C6502440.676715%
D6502160.246078%

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 7733 6504 68 68 0.88% 1.05%
B 7733 6504 122 122 1.58% 1.88%
C 7733 6504 0 0 0.00% 0.00%
D 7733 6504 5 5 0.06% 0.08%

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 15 174 289401 1805.0 798 783 159.9
A 0 226 6947 38.55 798 783 159.9
A 12 194 5862 31.76 798 783 159.9
B 3 112 408186 2733.43 803 783 149.0
B 4 173 154700 1032.69 803 783 149.0
B 15 35 111146 740.47 803 783 149.0
C 14 238 123738 679.99 786 791 180.8
C 3 233 77251 422.88 786 791 180.8
C 13 61 5547 26.3 786 791 180.8
D 10 70 28802 148.92 786 766 188.3
D 12 218 27392 141.43 786 766 188.3
D 2 234 23243 119.39 786 766 188.3

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