ASTROSAT CZTI

Data Quality Report

Orbit 04314

Creation date: 2024-06-27T14:40:15.790379
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/AS1G05_219T01_9000000540_04314cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04314cztM0_level2_quad_clean.evt
Size (bytes)468,509,76078,287,040
Size446.8 MB 74.7 MB
Events in quadrant A4,187,473492,834
Events in quadrant B3,642,102487,614
Events in quadrant C2,840,502485,514
Events in quadrant D3,100,334474,281

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165322
B0150581
C0127711
D0135081

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61681472.383268%
B61681342.172503%
C6168701.134890%
D6168961.556420%

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 7393 6168 15 15 0.20% 0.24%
B 7393 6168 17 17 0.23% 0.28%
C 7393 6168 1 1 0.01% 0.02%
D 7393 6168 11 11 0.15% 0.18%

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 13 251 1187872 7766.61 747 732 152.9
A 15 234 55656 359.33 747 732 152.9
A 0 50 25656 163.06 747 732 152.9
B 3 0 375578 2649.87 745 729 141.5
B 15 204 122373 859.92 745 729 141.5
B 14 167 65131 455.27 745 729 141.5
C 12 4 13965 78.58 719 719 168.6
C 10 65 11503 63.98 719 719 168.6
C 9 247 6879 36.54 719 719 168.6
D 4 95 72613 409.69 726 705 175.5
D 2 136 59553 335.28 726 705 175.5
D 13 53 48449 272.02 726 705 175.5

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