ASTROSAT CZTI

Data Quality Report

Orbit 06293

Creation date: 2024-06-27T15:05:16.105497
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_118T01_9000000826_06293cztM0_level2.evt modeM0/AS1A02_118T01_9000000826_06293cztM0_level2_quad_clean.evt
Size (bytes)586,998,720100,313,280
Size559.8 MB 95.7 MB
Events in quadrant A3,812,437659,864
Events in quadrant B3,449,007674,703
Events in quadrant C2,807,874668,152
Events in quadrant D7,278,945592,982

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153783
B0143822
C0128452
D0260512

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6333520.821096%
B63331652.605400%
C6333390.615822%
D633398615.569240%

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 7408 6333 2 2 0.03% 0.03%
B 7408 6333 101 101 1.36% 1.59%
C 7408 6333 0 0 0.00% 0.00%
D 7408 6333 905 905 12.22% 14.29%

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 15 236 551739 3735.14 726 711 147.5
A 8 15 454304 3074.68 726 711 147.5
A 13 14 11723 74.64 726 711 147.5
B 3 64 338890 2462.01 730 712 137.4
B 0 219 182459 1323.16 730 712 137.4
B 4 81 60536 435.53 730 712 137.4
C 13 61 5797 30.73 717 720 165.2
C 1 16 4479 22.75 717 720 165.2
C 9 54 3040 14.04 717 720 165.2
D 2 63 3546213 21787.21 672 652 162.7
D 12 220 699511 4294.44 672 652 162.7
D 2 152 133923 818.94 672 652 162.7

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