ASTROSAT CZTI

Data Quality Report

Orbit 04313

Creation date: 2024-06-27T14:40:14.973149
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_04313cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04313cztM0_level2_quad_clean.evt
Size (bytes)477,645,12080,023,680
Size455.5 MB 76.3 MB
Events in quadrant A5,189,783509,381
Events in quadrant B3,146,527513,567
Events in quadrant C2,689,480506,115
Events in quadrant D3,048,134490,506

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0195892
B0130081
C0119281
D0129541

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57731893.273861%
B57731141.974710%
C5773801.385761%
D57731322.286506%

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 7028 5773 36 36 0.51% 0.62%
B 7028 5773 15 15 0.21% 0.26%
C 7028 5773 0 0 0.00% 0.00%
D 7028 5773 40 40 0.57% 0.69%

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 2322431 16040.06 711 696 144.7
A 0 50 87185 597.52 711 696 144.7
A 8 15 24350 163.42 711 696 144.7
B 3 0 103375 756.95 711 698 135.6
B 15 204 85654 626.31 711 698 135.6
B 4 48 62385 454.77 711 698 135.6
C 10 65 10038 58.75 684 688 159.1
C 13 61 5762 31.88 684 688 159.1
C 9 247 4597 24.56 684 688 159.1
D 2 136 122091 733.74 690 670 165.5
D 10 172 68653 410.82 690 670 165.5
D 5 97 52250 311.7 690 670 165.5

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