ASTROSAT CZTI

Data Quality Report

Orbit 07219

Creation date: 2024-06-27T15:17:03.623412
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/AS1A02_111T01_9000000986_07219cztM0_level2.evt modeM0/AS1A02_111T01_9000000986_07219cztM0_level2_quad_clean.evt
Size (bytes)466,456,320103,930,560
Size444.8 MB 99.1 MB
Events in quadrant A3,232,982685,195
Events in quadrant B3,305,869699,666
Events in quadrant C2,927,078677,881
Events in quadrant D4,221,112633,422

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138553
B0142312
C0132492
D0173852

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6475430.664093%
B6475530.818533%
C6475190.293436%
D64753305.096525%

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 7560 6475 10 10 0.13% 0.15%
B 7560 6475 8 8 0.11% 0.12%
C 7560 6476 2 2 0.03% 0.03%
D 7560 6475 273 273 3.61% 4.22%

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 294274 1938.57 754 740 151.4
A 3 1 10635 65.35 754 740 151.4
A 14 111 10302 63.15 754 740 151.4
B 0 214 101904 695.8 763 744 145.4
B 4 81 88455 603.3 763 744 145.4
B 10 16 60538 411.28 763 744 145.4
C 9 68 38155 218.45 731 733 171.3
C 8 128 12197 66.92 731 733 171.3
C 10 22 10924 59.49 731 733 171.3
D 2 216 1013578 5811.86 705 684 174.3
D 2 14 264646 1514.58 705 684 174.3
D 2 136 185270 1059.13 705 684 174.3

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