ASTROSAT CZTI

Data Quality Report

Orbit 33549

Creation date: 2024-06-27T20:50:02.231243
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/AS1A11_060T01_9000004808_33549cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33549cztM0_level2_quad_clean.evt
Size (bytes)456,408,00080,300,160
Size435.3 MB 76.6 MB
Events in quadrant A2,611,344527,292
Events in quadrant B3,254,411524,016
Events in quadrant C3,911,813496,501
Events in quadrant D3,659,848487,088

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114613
B0133702
C0153862
D0147682

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A566380.141268%
B5663961.695215%
C56631973.478722%
D5663681.200777%

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 8948 5665 0 0 0.00% 0.00%
B 8948 5665 74 74 0.83% 1.31%
C 8948 5665 183 183 2.05% 3.23%
D 8948 5665 56 56 0.63% 0.99%

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 13 254 9475 65.69 674 661 134.2
A 3 137 6726 45.2 674 661 134.2
A 10 83 6287 41.93 674 661 134.2
B 0 229 248637 1924.04 667 650 128.9
B 4 170 244326 1890.6 667 650 128.9
B 4 251 46077 352.45 667 650 128.9
C 1 23 305454 2035.79 640 645 149.7
C 14 254 297302 1981.35 640 645 149.7
C 3 233 244066 1625.79 640 645 149.7
D 8 195 674296 4241.98 645 628 158.8
D 2 250 146711 919.86 645 628 158.8
D 13 249 108260 677.74 645 628 158.8

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