ASTROSAT CZTI

Data Quality Report

Orbit 14907

Creation date: 2024-06-27T17:01:10.136354
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_011T09_9000002202_14907cztM0_level2.evt modeM0/AS1A04_011T09_9000002202_14907cztM0_level2_quad_clean.evt
Size (bytes)464,941,44073,471,680
Size443.4 MB 70.1 MB
Events in quadrant A3,232,274463,391
Events in quadrant B3,547,355448,914
Events in quadrant C3,412,358434,633
Events in quadrant D3,462,992440,112

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133693
B0143202
C0138662
D0142762

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6268580.925335%
B62681211.930440%
C6268410.654116%
D6269761.212315%

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 7534 6270 0 0 0.00% 0.00%
B 7534 6270 23 23 0.31% 0.37%
C 7534 6270 9 9 0.12% 0.14%
D 7535 6271 42 42 0.56% 0.67%

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 3 1 13173 74.51 836 821 165.8
A 0 226 7460 40.05 836 821 165.8
A 12 194 6158 32.19 836 821 165.8
B 10 16 143325 931.19 822 804 153.1
B 3 64 98507 638.36 822 804 153.1
B 0 229 51927 334.02 822 804 153.1
C 3 233 333625 1848.73 788 793 180.0
C 13 61 5621 26.82 788 793 180.0
C 14 220 2847 11.41 788 793 180.0
D 7 254 137976 732.88 793 775 187.2
D 2 136 86004 455.27 793 775 187.2
D 10 70 81687 432.21 793 775 187.2

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