ASTROSAT CZTI

Data Quality Report

Orbit 10245

Creation date: 2024-06-27T15:57:11.957399
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/AS1G07_011T03_9000001476_10245cztM0_level2.evt modeM0/AS1G07_011T03_9000001476_10245cztM0_level2_quad_clean.evt
Size (bytes)485,809,92062,470,080
Size463.3 MB 59.6 MB
Events in quadrant A3,113,528365,838
Events in quadrant B3,683,768362,971
Events in quadrant C3,043,865364,386
Events in quadrant D4,433,972348,100

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133333
B0149682
C0132502
D0175462

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6447160.248177%
B64471191.845820%
C6447200.310222%
D6447540.837599%

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 7682 6448 0 0 0.00% 0.00%
B 7682 6447 64 64 0.83% 0.99%
C 7682 6448 0 0 0.00% 0.00%
D 7682 6448 31 31 0.40% 0.48%

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 15570 91.47 803 788 161.6
A 0 226 7292 40.25 803 788 161.6
A 12 194 6665 36.37 803 788 161.6
B 10 247 330605 2166.49 804 784 152.2
B 0 219 76145 495.02 804 784 152.2
B 4 239 59691 386.94 804 784 152.2
C 13 61 5797 27.94 778 783 179.5
C 0 207 3824 16.94 778 783 179.5
C 12 4 3683 16.16 778 783 179.5
D 1 52 917956 4534.28 760 746 202.3
D 8 195 483809 2388.05 760 746 202.3
D 13 104 61037 298.05 760 746 202.3

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